rotary speed brake actuation system ica supplement

ICA Supplement.dot (Rev. 09/26/2008) Form 2261

CESSNA AIRCRAFT COMPANY

AIRCRAFT DIVISION

WICHITA, KANSAS 67277

Rotary Speed Brake Actuation System ICA Supplement

MODEL NO: 510

SUPPLEMENT NO: ICA-510-27-00001

SUPPLEMENT

DATE:

04/28/2009

PREPARED BY: Original Signed By:

NRG

CHECKED BY: Original Signed By:

GDH

APPROVED BY: Original Signed By:

PJK

APPROVED BY: Original Signed By:

MDD

Cessna Aircraft Company Page i Aircraft Division Rotary Speed Brake Actuation System ICA Supplement Wichita, Kansas 67277 Supplement No.: ICA-510-27-00001


REVISIONS

Rev Date By Approved By

- 04/28/2009 See Title Sheet See Title Sheet

ECR 062178

Section Description

All Initial Release


A 07/23/2009 Neil Grayson GDH PJK MDD

ECR 062178

Section Description

4.1.1.3. 6.3. Figure 2 Figures 5 & 6

Revised to be applicable for new hardware configuration. Updated troubleshooting section to include new figures. Updated figure to show new hardware configuration. Added figures for troubleshooting.


B 12/11/2009 Neil Grayson GDH PJK MDD

ECR 068665

Section Description

Table 1 Effectivity “510-000315 And On” was “EC 62178 And On”

Cessna Aircraft Company Page ii Aircraft Division Rotary Speed Brake Actuation System ICA Supplement Wichita, Kansas 67277 Supplement No.: ICA-510-27-00001



C 02/08/2010 Neil Grayson PJK MDD

ECR 068665 & 062178

Section Description

Table 2 Added Push/Pull Spring Scale. Table 5 Added Table 5 Speed Brake Installation Parts List. Figure 1 Figure 2 Figure 3

Item number callouts were part name callouts.

3.3.7. “7008101-23 & -24 WIRE BUNDLE ASSY - SPEED BRAKES - SWITCH” was “NI8U-M12-AN6X PROXIMITY SWITCH”

4. Re-arranged Sections 4.1 and 4.2 so that the proximity switch removal/installation comes before the actuator removal/installation.

4.1.2.3. Added detailed instructions on installing the proximity switch. 4.2. Added “NOTE: The proximity switch should be installed before the

actuator is connected to the speed brake panels…” 6.1.2.3.2. Added instructions to adjust proximity switch. 6.1.3.16. Removed “Make sure that the speed brake system operates

without too much noise.”


D 02/19/2010 Neil Grayson

ECR 068665 & 062178

Section Description

3.3.7. Separated 7008101-23 & -24 into LH & RH descriptions; were listed together as one line item.

4.1.2.3. Added steps (e) and (f). 4.2.2.3. Added “with the bonding jumper between the support bracket and

the hardware.” 4.2.2.6. Added Figure 2 reference.

Moved bonding jumper installation up to step 3. Added safety wire installation step.

Cessna Aircraft Company Page iii Aircraft Division Rotary Speed Brake Actuation System ICA Supplement Wichita, Kansas 67277 Supplement No.: ICA-510-27-00001


CONTENTS

Section / Title Page

REVISIONS .................................................................................................................................................... i CONTENTS .................................................................................................................................................. iii TABLES ........................................................................................................................................................ v FIGURES ...................................................................................................................................................... v APPENDICES ............................................................................................................................................... v 1. INTRODUCTION ....................................................................................................................................... 1

1.1. Purpose ..................................................................................................................................... 1

2. APPLICABILITY ....................................................................................................................................... 2 2.1. Effectivity ................................................................................................................................... 2 2.2. Complete ICA Documents ........................................................................................................ 2

3. DESCRIPTION AND OPERATION .......................................................................................................... 2 3.1. Description ................................................................................................................................ 2

3.1.1. Speed Brake Components ........................................................................................ 2

3.1.2. Extension and Retraction .......................................................................................... 2 3.2. Operation .................................................................................................................................. 3

3.2.1. Speed Brake Control System .................................................................................... 3

3.2.2. Electrical System ...................................................................................................... 3 3.3. System Components ................................................................................................................. 3

3.3.1. 9912749-1 Rotary Actuator - Speed Brake, LH ....................................................... 3

3.3.2. 9912749-2 Rotary Actuator - Speed Brake, RH ...................................................... 3

3.3.3. 7024031-25 Upper Speed Brake Assy, LH .............................................................. 4

3.3.4. 7024031-26 Upper Speed Brake Assy, RH ............................................................. 4

3.3.5. 7024031-27 Lower Speed Brake Assy, LH .............................................................. 4

3.3.6. 7024031-28 Lower Speed Brake Assy, RH ............................................................. 4

3.3.7. 7008101-23 Wire Bundle Assy - Speed Brakes - LH Switch .................................... 4

3.3.8. 7008101-24 Wire Bundle Assy - Speed Brakes - RH Switch ................................... 4 3.4. Aircraft Wiring ............................................................................................................................ 5

3.4.1. Wire Routing – General ............................................................................................ 5

Cessna Aircraft Company Page iv Aircraft Division Rotary Speed Brake Actuation System ICA Supplement Wichita, Kansas 67277 Supplement No.: ICA-510-27-00001


3.4.2. Wire Routing – Tailcone ............................................................................................ 5

3.4.3. Wire Routing – Wing ................................................................................................. 5

4. REMOVAL AND INSTALLATION ............................................................................................................ 6 4.1. Speed Brake Proximity Switch Removal/Installation ................................................................ 6 4.2. Rotary Speed Brake Actuator Removal/Installation .................................................................. 8 4.3. Speed Brake Control Switch Removal/Installation ................................................................. 10

5. MAINTENANCE AND SPECIAL TOOLS ............................................................................................... 11 5.1. Maintenance – Rotary Speed Brake Actuation System Line Replaceable Units (LRU) ......... 11 5.2. System Wiring ......................................................................................................................... 11

6. TESTING, RETURN TO SERVICE AND TROUBLESHOOTING .......................................................... 11 6.1. Adjustment/Test ...................................................................................................................... 11

6.1.1. Hold-Down Load Adjustment .................................................................................. 12

6.1.2. Speed Brake Retracted Panel Position Adjustment ............................................... 14

6.1.3. Speed Brake System Test ...................................................................................... 15 6.2. Inspection/Check ..................................................................................................................... 18

6.2.1. Access ..................................................................................................................... 18

6.2.2. Detailed Inspection of the Speed Brake System. ................................................... 19 6.3. Troubleshooting ...................................................................................................................... 19

6.3.1. Speed Brake Will Not Move. ................................................................................... 19

6.3.2. SPD BRK EXTEND CAS Message. ....................................................................... 19

7. AIRWORTHINESS LIMITATIONS ......................................................................................................... 20 7.1. Limitations and Replacement Intervals ................................................................................... 20

7.1.1. Mandatory replacement times. ................................................................................ 20

7.1.2. Mandatory inspection intervals. .............................................................................. 20

7.1.3. Mandatory inspection procedures. .......................................................................... 20

Cessna Aircraft Company Page v Aircraft Division Rotary Speed Brake Actuation System ICA Supplement Wichita, Kansas 67277 Supplement No.: ICA-510-27-00001


TABLES

Table / Title Page

Table 1 Installation ICA Effectivity ................................................................................................ 2 Table 2 Tools and Equipment ..................................................................................................... 11 Table 3 Speed Brake Test Box Initial Switch Positions .............................................................. 12 Table 4 Circuit Breakers ............................................................................................................. 18 Table 5 Speed Brake Installation Parts List ................................................................................ 24

FIGURES

Figure / Title Page Figure 1 Speed Brake Installation ............................................................................................... 21 Figure 2 Speed Brake Panel Connection .................................................................................... 22 Figure 3 Speed Brake Retract Proximity Switch ......................................................................... 23 Figure 4 Speed Brake Test Box .................................................................................................. 25 Figure 5 Troubleshooting – Speed Brake Will Not Move ............................................................ 26 Figure 6 Troubleshooting – Speed Brake Extend CAS Message ............................................... 27

APPENDICES

Appendix / Title Page Appendix 1 Wiring Diagrams ...................................................................................................... 29

Cessna Aircraft Company Page vi Aircraft Division Rotary Speed Brake Actuation System ICA Supplement Wichita, Kansas 67277 Supplement No.: ICA-510-27-00001


This page blank.

Cessna Aircraft Company Page 1 Aircraft Division Rotary Speed Brake Actuation System ICA Supplement Wichita, Kansas 67277 Supplement No.: ICA-510-27-00001


1. INTRODUCTION 1.1. Purpose

1.1.1. The purpose of this Instructions for Continued Airworthiness (ICA) Supplement is

to provide the maintenance technician with the information necessary to ensure

the correct functionality and performance of the Rotary Speed Brake Actuation

System on the Cessna Model 510.

1.1.2. This supplemental document is designed to satisfy the required 14 CFR 23.1529

“Instructions for Continued Airworthiness” requirements associated with this

installation. This document is a supplement to the Model 510 Maintenance

Manual and may or may not be incorporated.

1.1.3. If this information is incorporated into the Model 510 Maintenance Manual, the

maintenance manual shall take precedence over this supplemental document.

Refer to the application ATA chapter and section of the respective Maintenance

Manual for the status of all ICA Supplements applicable to your model.

NOTE: This document must be placed with the aircraft operator’s Technical Library

CD-ROM or Maintenance Manual and incorporated into the operator’s

scheduled maintenance program.



2. APPLICABILITY 2.1. Effectivity

This Instructions for Continued Airworthiness (ICA) supplement is effective for the following

aircraft model(s) and serialization where this Rotary Speed Brake Actuation System is

installed:

Table 1 Installation ICA Effectivity

2.2. Complete ICA Documents

2.2.1. The following document(s), in conjunction with this supplement, constitute the

Instructions for Continued Airworthiness for the Rotary Speed Brake Actuation

System. All items must be available to the operator at initial delivery.

• Model 510 Wiring Diagram Manual

3. DESCRIPTION AND OPERATION 3.1. Description

3.1.1. Speed Brake Components

Speed brakes are installed on the top and bottom surface of each wing, forward of

the flaps. The speed brake system consists of one top and bottom panel per

wing, and one electric actuator per wing. Two thumb switches, one installed on

the left side of the left throttle lever knob, and one installed on the right side of the

right throttle lever knob, control actuation of the speed brakes. During descent

and landing, the pilot can extend the speed brakes, which create drag, to help

slow the airplane.

3.1.2. Extension and Retraction

The panels are always in one of two positions: extended, or retracted. There are

no set positions between extended or retracted. The rotational travel of the output

shaft on the electric actuator is controlled through hard stops internal to the motor

Model Beginning Effectivity

Ending Effectivity

510 -000315 and On

B



of the actuator, which are fixed. The output shaft rotates 180° in one direction to

extend the panels, and 180° in the opposite direction to retract the panels.

3.2. Operation

3.2.1. Speed Brake Control System

The speed brakes are controlled by a momentary thumb switch installed on each

throttle lever knob. Move the switch aft to the EXT position to extend the speed

brakes and to the RET position to retract them. The speed brakes will extend

when the momentary thumb switch is moved to the EXT position and when the

throttle levers are at 85% throttle lever angle (TLA) or less. If the speed brakes

are extended, and the throttle levers are moved to more than 85% TLA, the speed

brakes will automatically retract.

3.2.2. Electrical System

The speed brake actuator is supplied with 28 VDC via the circuit breaker panel in

the cockpit. The pilot or copilot activates one of the momentary extend/retract

switches, which supplies a ground, thus activating the actuator. All electronic

controls for the actuator are located within the actuator housing itself.

A proximity switch is used to inform the pilot that the speed brakes are extended.

This proximity switch is installed on the trailing edge of a wing rib, inboard of each

actuator. It senses a target plate installed on the upper speed brake panel. This

proximity switch is configured to close (give a ground) when the target is sensed.

The white SPD BRK EXTEND message is shown on the Engine Indication and

Crew Alerting System (EICAS) display when the left or right side retract proximity

switch is open.

3.3. System Components

3.3.1. 9912749-1 ROTARY ACTUATOR - SPEED BRAKE, LH

Electric rotary actuator. Located on the LH wing, forward of the flaps, and

between the upper and lower speed brake panels.

3.3.2. 9912749-2 ROTARY ACTUATOR - SPEED BRAKE, RH

Electric rotary actuator. Located on the RH wing, forward of the flaps, and

between the upper and lower speed brake panels.



3.3.3. 7024031-25 UPPER SPEED BRAKE ASSY, LH

Upper speed brake panel assembly – including the panel structure, hinge halves,

shims, and actuator attachment lug. Located on the LH wing, directly above the

LH speed brake actuator.

3.3.4. 7024031-26 UPPER SPEED BRAKE ASSY, RH

Upper speed brake panel assembly – including the panel structure, hinge halves,

shims, and actuator attachment lug. Located on the RH wing, directly above the

RH speed brake actuator.

3.3.5. 7024031-27 LOWER SPEED BRAKE ASSY, LH

Lower speed brake panel assembly – including the panel structure, hinge halves,

shims, and actuator attachment lug. Located on the LH wing, directly below the

LH speed brake actuator.

3.3.6. 7024031-28 LOWER SPEED BRAKE ASSY, RH

Lower speed brake panel assembly – including the panel structure, hinge halves,

shims, and actuator attachment lug. Located on the RH wing, directly below the

RH speed brake actuator.

3.3.7. 7008101-23 WIRE BUNDLE ASSY - SPEED BRAKES - LH SWITCH

Retract proximity switch, used to annunciate the white SPD BRK EXTEND

message on the Engine Indication and Crew Alerting System (EICAS) display

when the left or right side retract proximity switch is open. Located on the inboard

rib of the LH speed brake area.

3.3.8. 7008101-24 WIRE BUNDLE ASSY - SPEED BRAKES - RH SWITCH

Retract proximity switch, used to annunciate the white SPD BRK EXTEND

message on the Engine Indication and Crew Alerting System (EICAS) display

when the left or right side retract proximity switch is open. Located on the inboard

rib of the RH speed brake area.

C,D



3.4. Aircraft Wiring

3.4.1. Wire Routing – General

Refer to Model 510 Wiring Diagram Manual for general wire routing.

3.4.2. Wire Routing – Tailcone

Refer to 7018305 for wire routing definition in the tailcone. This includes the

electrical connection to the J-box.

3.4.3. Wire Routing – Wing

Refer to 7028005 for wire routing definition in the wings. This includes the

electrical connections to each actuator, as well as each retract proximity switch.



4. REMOVAL AND INSTALLATION

This section gives removal and installation procedures for the Rotary Speed Brake

Actuation system. The two components of the speed brake control system are the

speed brake actuator, and the speed brake proximity switch. Refer to Table 2 for a list

of special tools and equipment needed for adjustment and testing the speed brake

system.

For maintenance procedures on the speed brake panels, refer to Chapter 57, Speed

Brakes – Maintenance Practices.

WARNING: Be careful when you do work near the speed brakes and remove electrical power from the airplane if possible. The speed brakes are electrically actuated and can cause injury to personnel.

CAUTION: Do not operate the speed brake system through a complete cycle (extend and retract) more than 5 times in 3 minutes. Damage can occur to the speed brake actuator.

4.1. Speed Brake Proximity Switch Removal/Installation

(Refer to Figures 1 & 3)

NOTE: The removal and installation procedures are typical for the left and right speed

brake proximity switches.

4.1.1. Remove the Speed Brake Proximity Switch.

1. Extend the speed brake actuators and the wing flaps.

(a) Set the DC POWER battery switch (SI004) in the cockpit to BATT.

(b) Move the SPD BRK switch (SI039) on the left or right throttle lever

to the EXT position.

(c) Move the flap control lever to the LAND detent.

(d) Set the DC POWER battery switch (SI004) to the OFF position.

(e) Disengage the L SPEED BRAKE (HC007) circuit breaker on the

pilot’s circuit breaker panel and/or the R SPEED BRAKE (HF007)

circuit breaker on the copilot’s circuit breaker panel.

C



(f) Disengage the FLAPS circuit breaker (HC006) on the pilot’s circuit

breaker panel in the cockpit.

2. Disconnect the proximity switch electrical connector (JL023 left, JR022 right)

from the wing wire bundle.

3. Remove the proximity switch from the wing rib.

4.1.2. Install the Speed Brake Proximity Switch.

1. Put the proximity switch in position on the wing rib.

2. Connect the proximity switch electrical connector (JL023 left, JR022 right) to

the wing wire bundle.

3. Install the proximity switch on the wing rib.

(a) Disconnect the upper and lower speed brake panels from the

actuator connecting links. Keep all hinges that attach the panel to

the wing structure intact.

(b) Close the upper speed brake panel by hand, and gain access to

the proximity switch through the disconnected lower panel.

(c) With the upper speed brake panel closed, set the proximity switch

gap per Figure 3. The switch can be adjusted inboard/outboard

by moving the retaining nuts on both sides of the wing rib. The

target on the upper panel can be adjusted up/down by loosening

the set screws.

(d) Move the upper and lower speed brake panels by hand through

full travel to check clearances, particularly between the proximity

switch and the target.

(e) Re-connect the upper and lower speed brake panels to the

actuator connecting links, using the existing hardware.

(Refer to Figure 2)

(f) Safety with wire the hardware that attaches each panel to the

connecting link. Reference Chapter 20, Safetying – Maintenance

Practices of the 510 Maintenance Manual.

4. Retract the speed brake actuators and the wing flaps.

(a) Engage the L SPEED BRAKE (HC007) circuit breaker on the


circuit breaker on the copilot’s circuit breaker panel in the cockpit.

C,D



(b) Engage the FLAPS circuit breaker (HC006) on the pilot’s circuit


(c) Set the DC POWER battery switch (SI004) in the cockpit to BATT.

(d) Move the SPD BRK switch (SI039) on the left or right throttle lever

to the RET position.

(e) Move the flap control lever to the UP detent.

(f) Set the DC POWER battery switch (SI004) to the OFF position.

5. Do the Speed Brake Retracted Panel Position Adjustment. Refer to the

Testing, Return to Service, and Troubleshooting – Adjustment/Test section of

this supplement.

4.2. Rotary Speed Brake Actuator Removal/Installation

(Refer to Figures 1 & 2)

NOTE: The proximity switch should be installed before the actuator is connected to the

speed brake panels. This will allow access through the lower side of the wing, to

set the distance between the switch and the target on the upper panel.

NOTE: The removal and installation procedures are typical for the left and right speed

brake actuators.

4.2.1. Remove the Rotary Actuator – Speed Brake.

1. Extend the speed brake actuators and the wing flaps.

(g) Set the DC POWER battery switch (SI004) in the cockpit to BATT.

(h) Move the SPD BRK switch (SI039) on the left or right throttle lever

to the EXT position.

(i) Move the flap control lever to the LAND detent.

(j) Set the DC POWER battery switch (SI004) to the OFF position.

(k) Disengage the L SPEED BRAKE (HC007) circuit breaker on the



(l) Disengage the FLAPS circuit breaker (HC006) on the pilot’s circuit


C



2. Disconnect the speed brake actuator electrical connector

(PL025 left, PR024 right).

3. Disconnect the speed brake connecting links from the upper and lower speed

brake panels.

(Refer to Figure 2)

(a) Remove the safety wire from the hardware that attaches each

panel to the connecting link.

(b) Remove hardware that attaches each panel to the connecting link.

Retain hardware with the actuator.

4. Remove the bolts that connect the speed brake actuator to the wing rib

(outboard).

5. Remove the bolts that connect the speed brake actuator to the support bracket

(inboard).

6. Remove the screws that connect the support bracket (inboard) to the spar.

NOTE: This will also remove the bonding jumper from the speed brake panel.

7. Remove the speed brake actuator from the airplane.

4.2.2. Install the Rotary Actuator – Speed Brake.

1. Use steel wool to clean the installation surfaces, as necessary.

2. Put the speed brake actuator in position in the wing.

3. Install the support bracket (inboard) to the wing spar with the screws, with the

bonding jumper between the support bracket and the hardware.

4. Install the bolts that connect the speed brake actuator to the support bracket

(inboard).

5. Install the bolts that connect the speed brake actuator to the wing rib

(outboard).

6. Connect the speed brake actuator connecting links to the upper and lower

speed brake panels.

(Refer to Figure 2)

(a) Install the hardware that attaches the connecting link to the speed

brake panel.

(b) Safety with wire the hardware that attaches each panel to the

connecting link. Reference Chapter 20, Safetying – Maintenance

Practices of the 510 Maintenance Manual.

A

D

D

D



NOTE: If a new speed brake actuator is being installed, install new bolt and

bushing packaged with the actuator.

7. Connect the speed brake actuator electrical connector (PL025 left, PR024

right).

8. Make sure that the speed brake actuator is electrically bonded (Type II) to wing

structure. Refer to 510 Maintenance Manual Chapter 20, Electrical Bond –

Maintenance Practices.

9. Retract the speed brake actuators and the wing flaps.

(a) Engage the L SPEED BRAKE (HC007) circuit breaker on the


circuit breaker on the copilot’s circuit breaker panel in the cockpit.

(b) Engage the FLAPS circuit breaker (HC006) on the pilot’s circuit


(c) Set the DC POWER battery switch (SI004) in the cockpit to BATT.

(d) Move the SPD BRK switch (SI039) on the left or right throttle lever

to the RET position.

(e) Move the flap control lever to the UP detent.

(f) Set the DC POWER battery switch (SI004) to the OFF position.

10. Do the Speed Brake System Test. Refer to the Testing, Return to Service,

and Troubleshooting – Adjustment/Test section of this supplement.

4.3. Speed Brake Control Switch Removal/Installation

4.3.1. Refer to the Speed Brake Control System – Maintenance Practices of the 510

Maintenance Manual.



5. MAINTENANCE AND SPECIAL TOOLS 5.1. Maintenance – Rotary Speed Brake Actuation System Line Replaceable Units (LRU)

Table 2 gives a list of the special tools and equipment that is used to complete the

maintenance procedures given in this chapter.

5.2. System Wiring

Refer to the Wiring Diagram Manual, Chapter 20, Standard Practices, for wiring

maintenance requirements and practices.

Table 2 Tools and Equipment

6. TESTING, RETURN TO SERVICE AND TROUBLESHOOTING 6.1. Adjustment/Test

This section gives adjustment and test procedures for the Rotary Speed Brake Actuation

system. Refer to Table 2 for a list of special tools and equipment needed for adjustment

and testing the speed brake system.

WARNING: Be careful when you do work near the speed brakes and remove electrical power from the airplane if possible. The speed brakes are electrically actuated and can cause injury to personnel.

NAME NUMBER MANUFACTURER USE

Digital Inclinometer KS5549

Kell-Strom Tool Inc.

214 Church Street

Wethersfield CT 06109

To measure the angle of

the speed brake panels

Speed Brake Test Box 7088003-11 Cessna Aircraft Company To perform tests of the

speed brake system

Push/Pull Spring Scale

(0-30 lbs) Commercially Available

To measure hold-down

load of the upper speed

brake panels

C




6.1.1. Hold-Down Load Adjustment

NOTE: The hold-down load is the load necessary to lift the upper speed brake

panel one panel skin thickness above the wing loft (approximately 0.08

inch, or 2.03 mm). The hold-down load adjustment procedure is typical for

the left and right speed brake systems.

6.1.1.1. Remove electrical power from the airplane.

6.1.1.1.1. Disengage the L SPEED BRAKE (HC007) circuit breaker on the



6.1.1.2. Disconnect the electrical connector for the retract proximity switch (JL023

left, or JR022 right) from the wing wire bundle.

6.1.1.3. Disconnect the electrical connector (PL025 left, or PR024 right) from the

speed brake actuator.

6.1.1.4. Place the switches on the speed brake test box in the positions listed in

Table 3.

SWITCH LABEL DESCRIPTION INITIAL POSITION

S1 Extend/Retract OFF

S2 Brake Released/Engaged Either*

S3 Throttle >85% OFF

S4 Manual/Auto AUTO

*This function is disabled for this configuration.

Table 3 Speed Brake Test Box Initial Switch Positions

6.1.1.5. Connect the speed brake test box to the electrical connectors for either

the left or right speed brake that follow:

6.1.1.5.1. Left speed brake: P3 on the speed brake test box to PL025. P4 on

the speed brake test box to JL023.

6.1.1.5.2. Right speed brake: P2 on the speed brake test box to PR024. P4 on

the speed brake test box to JR022.



6.1.1.6. Apply electrical power to the speed brake test box.

6.1.1.7. Use the speed brake test box to retract the speed brake actuator.

NOTE: The operation to extend the speed brake actuator is typical, using

the same switch. This configuration only utilizes a retract

proximity switch that is closed when the speed brake panels are

retracted. Therefore, the Extend light on the speed brake test box

is disabled for this configuration.

6.1.1.7.1. Temporarily move the S1 (Extend/Retract) on the speed brake test

box to the Retract position.

NOTE: Switch activation is temporary; it is not necessary to hold the

switch until the speed brake stops moving. Movement will

stop when the actuator impacts the hard stops internal to the

actuator.

6.1.1.8. With the speed brakes retracted, use tape to attach a spring scale to the

trailing edge of the upper speed brake panel.

6.1.1.9. With the spring scale, pull up on the top speed brake panel until there is

approximately 0.08 inch (2.03 mm) distance between the upper speed

brake panel and the top wing skin.

6.1.1.9.1. The hold-down load must be 20.0 pounds, +5.0 or -5.0 pounds

(89.0 N, +22.4 or -22.4 N).

6.1.1.9.2. If the hold-down load is not 20.0 pounds, +5.0 or -5.0 pounds,

add/remove shims as necessary (Figure 2). If shims are removed, the

hold-down load will increase. If shims are added, the hold-down load

will decrease.

6.1.1.10. Hold-down load is not required for the lower speed brake panel. Verify

that the lower speed brake panel just makes contact with the lower wing

skin when the actuator retracts. If not, add/remove shims as necessary.

6.1.1.11. Repeat adjustments for opposite side as necessary.

6.1.1.12. Install inclinometers on the top and bottom panels of the speed brakes,

perpendicular to the hinge lines. Use tape to hold the inclinometers to the

speed brake panels.

6.1.1.13. Zero the inclinometers, and using the speed brake test box, extend the

actuator.



6.1.1.14. Ensure deflection of LH and RH upper panels is within 1 degree of each

other, keeping the hold-down load in the range specified above.

6.1.1.15. Repeat for lower panels. Hold-down load is not required for the lower

panel.

6.1.1.16. Remove the spring scale, inclinometers and tape from the top speed

brake panel.

6.1.2. Speed Brake Retracted Panel Position Adjustment

(Refer to Figure 3)

NOTE: The speed brake retracted panel position adjustment is typical for the left

and right speed brake panels.


6.1.2.1. Use the speed brake test box to retract the speed brake actuator.

NOTE: The operation to retract the speed brake actuator is typical, using

the same switch. This configuration only utilizes a retract

proximity switch that is closed when the speed brake panels are

retracted. Therefore, the Extend light on the speed brake test box

is disabled for this configuration.

6.1.2.1.1. Temporarily move the S1 (Extend/Retract) on the speed brake test

box to the Retract position.

NOTE: Switch activation is temporary; it is not necessary to hold the

switch until the speed brake stops moving. Movement will

stop when the actuator impacts the hard stops internal to the

actuator.

6.1.2.2. Remove electrical power from the speed brake test box.

6.1.2.3. Adjust the retract target plate.

6.1.2.3.1. Loosen the screws on the retract target plate to adjust it.

6.1.2.3.2. During installation (refer to Section 4), the gap between the retract

target plate and the retract proximity switch tip is set per Figure 3.

This distance can be adjusted by loosening the retaining nuts on both

C



sides of the wing rib, and moving the proximity switch

inboard/outboard.

6.1.2.3.3. Move the retract target plate up or down to close the retract proximity

switch at the same time the top speed brake panel touches the top of

the wing skin.

6.1.2.4. Disconnect the speed brake test box from the electrical connectors for

either the left or right speed brake that follow:

6.1.2.4.1. Left speed brake: P3 on the speed brake test box from PL025. P4 on

the speed brake test box from JL023.

6.1.2.4.2. Right speed brake: P2 on the speed brake test box from PR024. P4

on the speed brake test box from JR022.

6.1.2.5. Connect the electrical connector (PL025 left, or PR024 right) to the speed

brake actuator.

6.1.2.6. Connect the electrical connector (JL023 left, or JR022 right) to the wing

wire bundle.

6.1.2.7. Engage the L SPEED BRAKE (HC007) circuit breaker on the pilot’s circuit

breaker panel and the R SPEED BRAKE (HF007) circuit breaker on the

copilot’s circuit breaker panel.

6.1.3. Speed Brake System Test

6.1.3.1. Connect external power to the airplane.

6.1.3.2. In the cockpit, set the DC POWER battery switch (SI004) to the BATT

position.

6.1.3.3. Set the avionics power switch (SI007) to the AVN PWR position.

6.1.3.4. Engage the circuit breakers shown in Table 4.

6.1.3.5. Make sure that the L FUEL BOOST (SI011) and R FUEL BOOST (SI012)

switches in the cockpit are in the OFF position.

6.1.3.6. Put the left and right throttle levers in the CUTOFF detent.

6.1.3.7. Make sure that the speed brake panels are in the fully retracted position.

6.1.3.8. Do an operational check of the pilot’s speed brake control switch (SI039).




6.1.3.8.1. Move the SPD BRK switch (SI039) on the left throttle lever to the EXT

position to extend the speed brake panels.

6.1.3.8.2. On the multi-function display (MFD), make sure that the white SPD

BRK EXTEND message comes on the Engine Indication and Crew

Alerting System (EICAS).

NOTE: It may be necessary to scroll down to get to this message.

6.1.3.8.3. Make sure that the speed brake panels extended.

6.1.3.8.4. Move the left throttle lever to the CLB detent, or throttle lever angle

(TLA) 48.5 degrees, +2.0 or -2.0 degrees.

6.1.3.8.5. Make sure that the speed brake panels retracted.

6.1.3.8.6. Make sure that the white SPD BRK EXTEND message goes off. If

not, revisit the Speed Brake Retracted Panel Position Adjustment

section.

6.1.3.8.7. Put the left throttle lever in the IDLE detent.

6.1.3.9. Do an operational check of the copilot’s speed brake control switch

(SI039).


6.1.3.9.1. Move the SPD BRK switch (SI039) on the right throttle lever to the

EXT position to extend the speed brake panels.

6.1.3.9.2. On the multi-function display (MFD), make sure that the white SPD

BRK EXTEND message comes on the Engine Indication and Crew

Alerting System (EICAS).

NOTE: It may be necessary to scroll down to get to this message.

6.1.3.9.3. Make sure that the speed brake panels extended.

6.1.3.9.4. Move the right throttle lever to the CLB detent, or throttle lever angle

(TLA) 48.5 degrees, +2.0 or -2.0 degrees.

6.1.3.9.5. Make sure that the speed brake panels retracted.

6.1.3.9.6. Make sure that the white SPD BRK EXTEND message goes off. If

not, revisit the Speed Brake Retracted Panel Position Adjustment

section.



6.1.3.9.7. Put the right throttle lever in the IDLE detent.

6.1.3.10. Move the SPD BRK switch (SI039) on the left throttle lever to the EXT

position to extend the speed brake panels. When the speed brake panels

start to move, move the SPD BRK switch to the RET position. Make sure

that the speed brakes immediately move in the opposite direction

(retract).

6.1.3.11. Move the SPD BRK switch (SI039) on the left throttle lever to the EXT


6.1.3.12. Move the SPD BRK switch (SI039) on the left throttle lever to the RET

position to retract the speed brake panels. When the speed brake panels

start to move, move the SPD BRK switch to the EXT position. Make sure

that the speed brakes do not immediately move in the opposite direction

(extend). The speed brake panels must continue to retract.

6.1.3.13. Move the SPD BRK switch (SI039) on the right throttle lever to the EXT

position to extend the speed brake panels. When the speed brake panels

start to move, move the SPD BRK switch to the RET position. Make sure

that the speed brakes immediately move in the opposite direction

(retract).

6.1.3.14. Move the SPD BRK switch (SI039) on the right throttle lever to the EXT


6.1.3.15. Move the SPD BRK switch (SI039) on the right throttle lever to the RET

position to retract the speed brake panels. When the speed brake panels

start to move, move the SPD BRK switch to the EXT position. Make sure

that the speed brakes do not immediately move in the opposite direction

(extend). The speed brake panels must continue to retract.

6.1.3.16. Operate the speed brake system through its full travel and make sure that

all components operate freely and correctly.

6.1.3.17. Put the left and right throttle levers in the CUTOFF detent.

6.1.3.18. Set the avionics power switch (SI007) in the cockpit to the OFF position.

6.1.3.19. Set the DC POWER battery switch (SI004) to the OFF position.

CAUTION: Disconnect external power when not in use to prevent an accidental discharge of the battery.

6.1.3.20. Disconnect external power from the airplane.

C



Table 4 Circuit Breakers

6.2. Inspection/Check

This section gives all necessary inspection procedures for the speed brake control

system. It contains inspection, and functional check data.

For a list of tools and equipment, refer to 510 Maintenance Manual – Flight Controls –

General, as well as Table 2 of this supplement.

6.2.1. Access

6.2.1.1. Put the DC POWER battery switch (SI004) on the BATT position.

6.2.1.2. Engage the L SPEED BRAKE circuit breaker (HC007) on the pilot’s circuit

breaker panel.

6.2.1.3. Engage the R SPEED BRAKE circuit breaker (HF007) on the copilot’s

circuit breaker panel.

CIRCUIT BREAKER NAME REFERENCE DESIGNATOR LOCATION

L SPEED BRAKE HC007 Pilot’s Circuit Breaker Panel

LH ELE #1 HZ113 Aft Power Junction Box (J-Box)

R SPEED BRAKE HF007 Copilot’s Circuit Breaker Panel

RH ELE #1 HZ112 Aft Power J-Box

R CH A FADEC HZ072 Aft Power J-Box

L CH B FADEC HZ074 Aft Power J-Box

R CH B FADEC HZ073 Aft Power J-Box

L CH A FADEC HZ075 Aft Power J-Box

SPEED BRAKE HZ103 Aft Power J-Box

NAV IAU 1 PRIM HC029 Pilot’s Circuit Breaker Panel

PFD 1 PRIM HC028 Pilot’s Circuit Breaker Panel

AVN COOL HF035 Copilot’s Circuit Breaker Panel

MFD PRIM HF033 Copilot’s Circuit Breaker Panel

NAV IAU 2 PRIM HF028 Copilot’s Circuit Breaker Panel

PFD 2 PRIM HF027 Copilot’s Circuit Breaker Panel

OVERVOLTAGE HT001 Aft Power J-Box (Ext Power)



6.2.1.4. Move the SPD BRK switch (SI039) on either LH or RH throttle lever to the

EXT position to extend the speed brake actuators.

6.2.1.5. Put the DC POWER battery switch (SI004) in the OFF position.

6.2.2. Detailed Inspection of the Speed Brake System.

6.2.2.1. Examine the speed brake actuators, upper and lower speed brake

panels, hinges, connecting links, and bonding jumpers for correct

installation, corrosion, cracks or other damage.

6.2.2.2. If the actuator has experienced any type of overload condition, the

shoulder bolts that connect each panel to the actuator need to be

removed from the arms and replaced. This should be done even if the

bolts themselves did not fracture and there is no visible deformation of the

bolts.

6.2.2.3. With the bolts removed, examine the connecting links for any damage

that may have resulted from overloading of the bolts. If visible

deformation or damage is present on the connecting links, they need to

be replaced. If no damage is present, the connecting links can be used

and only the shoulder bolts need to be replaced.

6.2.2.4. Put the DC POWER battery switch in the BATT position.

6.2.2.5. Move the SPD BRK switch (SI039) on either LH or RH throttle lever to the

RET position to retract the speed brake actuators.

6.2.2.6. Put the DC POWER battery switch in the OFF position.

6.3. Troubleshooting

6.3.1. Speed Brake Will Not Move.

6.3.1.1. If the speed brake will not extend or retract, review the troubleshooting

tree in Figure 5.

6.3.2. SPD BRK EXTEND CAS Message.

6.3.2.1. If the SPD BRK EXTEND CAS message is illuminated in the cockpit

when the speed brakes are in the retracted position, review section 6.1.2

Speed Brake Retracted Panel Position Adjustment of this supplement, as

well as the troubleshooting tree in Figure 6.

A



7. AIRWORTHINESS LIMITATIONS 7.1. Limitations and Replacement Intervals

Cessna Aircraft Company Model 510 Maintenance Manual, Chapter 4, Airworthiness

Limitations for Citation airplanes, contains the system and airframe limitations for the

Model 510.

NOTE: The Airworthiness Limitations section is FAA-approved and specifies

maintenance required under Section 43.16 and 91.403 of Title 14 Code

of Federal Regulations, unless an alternative program has been FAA

approved.

This system is has no mandatory replacement time, inspection interval, or structural

inspection procedures, and has no impact on Cessna Aircraft Company Model 510

Maintenance Manual, Chapter 4 Airworthiness Limitations for Citations.

7.1.1. Mandatory replacement times.

1. None. 7.1.2. Mandatory inspection intervals.

1. None.

7.1.3. Mandatory inspection procedures.

1. None.



Figure 1 Speed Brake Installation C



Figure 2 Speed Brake Panel Connection A,C



Figure 3 Speed Brake Retract Proximity Switch C



- Item Not Illustrated

Table 5 Speed Brake Installation Parts List

ITEM PART NUMBER NOMENCLATURE UNITS PER ASSY

1 9912749-1 ROTARY ACTUATOR - SPEED BRAKE - LH ML004

01

- 2 9912749-2 ROTARY ACTUATOR - SPEED BRAKE - RH MR003

01

3 7062311-19 OTBD SUPPORT BRACKET - LH 01 - 4 7062311-20 OTBD SUPPORT BRACKET - RH 01

5 AN3-3A BOLT 04 6 NAS1149F0332P WASHER 04 7 7062311-7 SUPPORT ASSY - LH 01

- 8 7062311-8 SUPPORT ASSY - RH 01 9 7062311-21 INBD BRACKET ASSY - LH 01

- 10 7062311-22 INBD BRACKET ASSY - RH 01 11 AN3-3A BOLT 04 12 NAS1149F0332P WASHER 04 13 AN3-5A BOLT 02 14 NAS1149F0332P WASHER 02 15 7008101-19 WBSA - SPEED BRAKES - LH

PL025 01

- 16 7008101-20 WBSA - SPEED BRAKES - RH PR024

01

17 7024031-25 UPPER SPEED BRAKE ASSY - LH 01 - 18 7024031-26 UPPER SPEED BRAKE ASSY - RH 01

19 7024032-53 LUG ASSY - SPEED BRAKE - UPPER 01 20 7024031-27 LOWER SPEED BRAKE ASSY - LH 01

- 21 7024031-28 LOWER SPEED BRAKE ASSY - RH 01 22 7024032-54 LUG ASSY - SPEED BRAKE - LOWER 01 23 7024032-57 SHIM - SPEED BRAKE A/R 24 2R54568002-5 BOLT - CONNECTING LINK 01 25 2R54576001-1 BUSHING - CONNECTING LINK 01 26 2R54567001-1 NUT, #5-40 - CONNECTING LINK 01 27 NAS517-2-4 SCREW 04 28 MS25083-2BB6 JUMPER ASSY 01 29 MS35207-263 SCREW 01 30 NAS1149F0332P WASHER 02 31 MS21042-3 NUT 01 32 7008101-23 WBSA - SPEED BRAKES - LH SWITCH 01

- 33 7008101-24 WBSA - SPEED BRAKES - RH SWITCH 01 34 7062302-3 TARGET 01 35 MS27039-0807 SCREW 02 36 NAS1149FN832P WASHER 02

C



Figure 4 Speed Brake Test Box



Figure 5 Troubleshooting – Speed Brake Will Not Move

YES

YES

NO NO

YES

NO

NO

NO

YES

SPEED BRAKE WILL NOT MOVE

ARE THE CORRESPONDING SPEED BRAKE CIRCUIT BREAKER PUSHED IN? ENGAGE CIRCUIT

BREAKERS NO

ARE THE THROTTLES ABOVE 85%?

YES

LOWER THROTTLE LEVERS SO THAT THEY ARE BELOW 85%.

REMOVE CONNECTOR TO SPEED BRAKE

ACTUATOR. DOES PIN C HAVE POWER?

IS PIN M GROUNDED?

TROUBLESHOOT WIRING

NO

VERIFY THAT PINS K AND H RECEIVE A GROUND WHEN THE

SPEED BRAKE SWITCH IS PLACED IN THE RETRACT POSITION. IS

GROUND PRESENT?

YES

VERIFY WIRING AND REPLACE

SWITCH IF WIRING IS GOOD.

VERIFY THAT PIN H DOES NOT HAVE A

GROUND WHEN THE SWITCH IS IN THE OFF POSITION. DOES PIN H

HAVE A GROUND?

NO

REPLACE SPEED BRAKE ACTUATOR

YES

YES

VERIFY THAT PINS B AND H RECEIVE A GROUND WHEN THE SPEED BRAKE SWITCH IS PLACED IN THE EXTEND

POSITION. IS GROUND PRESENT?

VERIFY THAT PINS B AND K DO NOT RECEIVE A GROUND

AT THE SAME TIME WHEN THE SPEED BRAKE SWITCH IS

PLACED IN THE EXTEND OR RETRACT POSITION. DO PINS B

AND K HAVE A GROUND AT THE SAME TIME?

NO

VERIFY THAT PIN F DOES NOT HAVE A GROUND. DOES PIN F HAVE A GROUND?

YES

VERIFY WIRING. IF WIRING IS GOOD, TROUBLESHOOT

FUEL CARD.

VERIFY WIRING AND REPLACE

SWITCH IF WIRING IS GOOD.

A



Figure 6 Troubleshooting – Speed Brake Extend CAS Message

YES

NO

NO

NO

SPEED BRAKE EXTEND CAS MESSAGE

ARE THE LED’S ON THE PROX SENSOR

TURNING ON?

NO

IS PIN B OF PROX SENSOR CONNECTOR RECEIVING A

GROUND?

IS PROX SENSOR CIRCUIT BREAKER

ENGAGED?

YES

ENGAGE CIRUIT

BREAKER

VERIFY WIRINGREPLACE PROX SENSOR

YES

VERIFY WIRING FROM PIN A OF PROX SENSOR CONNECTOR TO THE GEA. IS

WIRING GOOD?

REPLACE GEA

INJECT A GROUND INTO PIN A OF THE SHIP SIDE PROX

SENSOR CONNECTOR. DOES THE CAS MESSAGE GO

AWAY WITH THE GROUND?

YES

NO

CORRECT WIRING

NO

IS TARGET ON EACH UPPER PANEL RIGGED

PROPERLY? RIG TARGET

YES

YES

A



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Appendix 1 Wiring Diagrams