form eng-dpm-005-2, rev 2

Form ENG-DPM-005-2, Rev 2

VT Mobile Aerospace Engineering, Inc. Engineering Department

Doc No. : 336A/ICA/001 Rev : S Date : 01 June, 2016 Page : ii

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Doc No. : 336A/ICA/001 Rev : S Date : 01 June, 2016 Page : iii

REVISION RECORD

Revision Date of Report Pages Remarks

- Through J

27 April 2011 Through

15 November 2012

ALL Refer to previous revision for past Revision Records

K 26 June 2013 v Updated Reference No. 5, 6, 7, 8, 10 and 11.

vi Updated Reference No. 14

9 Updated Reference 336A/AVS/004

L 12 November

2013 v Updated Reference No. 5, 10 and 12


M 16 December

2013 v Updated Reference No. 10 and 12


N 23 December

2013 v Updated Reference No. 10


P 06 May 2014 vi Updated Reference No. 16, 17 and 18

2 Clerical Error correction

5 Clerical Error correction

R 08 August 2014 ALL Updated Company Name to VT Mobile Aerospace Engineering, Inc. (VT MAE)

v Updated Reference No. 1, 5, 7, and 10


S 01 June, 2016 i-vi Updated title page, list of active pages, revision records, table of contents and list of references

2 Added reference to the Compatibility Study between APB Blended Winglets and VT MAE Combi 757-200CF

8 Updated Section 7.1.


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TABLE OF CONTENTS

SECTION DESCRIPTION PAGE

Title Page i

List of Active Pages ii

Table of Revisions iii

Table of Contents iv

List of References v

List of Tables and Figures vi

1 Introduction ............................................................................................................................. 1

1.1 Description ................................................................................................................................. 1

1.2 Concurrent Modifications ........................................................................................................... 2

1.3 Applicability ................................................................................................................................ 2

1.4 Modification Facilities ................................................................................................................. 2

2 Maintenance Instructions ...................................................................................................... 3

2.1 Control and Operation ................................................................................................................ 3

2.2 Maintenance Checks .................................................................................................................. 3

2.3 Structural Repair Information ..................................................................................................... 4

2.4 Airplane Maintenance Manual ................................................................................................... 4

2.5 Fault Isolation Manual ................................................................................................................ 4

2.6 Component Maintenance Manuals ............................................................................................ 4

2.7 Wiring Diagram Manuals ............................................................................................................ 5

2.8 Illustrated Parts Catalog ............................................................................................................. 5

2.9 Maintenance Program ................................................................................................................ 5

2.10 Maintenance Program Revisions ............................................................................................... 5

2.11 Fault Reporting Manual .............................................................................................................. 5

3 Airplane .................................................................................................................................... 6

4 Servicing .................................................................................................................................. 7

5 Airplane Handling ................................................................................................................... 7

6 Placards and Markings ........................................................................................................... 7

7 Airworthiness Limitations ...................................................................................................... 8

7.1 14 CFR Part 25, Section 25.571(a) (b) and Section 26.47 ........................................................ 8

7.2 14 CFR Part 25, Section 25.981(a) (d) ...................................................................................... 8

7.3 Electrical Wiring Interconnection System (EWIS) 14 CFR Part 25, Section 25.1729 ............... 9

Appendix A: MMEL / MEL ............................................................................................................... A1

Appendix B: Component Maintenance Manual (CMM) List ......................................................... B1

Appendix C – ICA Checklist ............................................................................................................ C1


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LIST OF REFERENCES

No. Reference Title or Description

1. A2NM Type Certificate Data Sheet Number A2NM, Revision Number 32.

2. ST13005AT-T FAA STC Project, Main Deck Cargo Door Redesign for STC ST03962AT.

3. - Title 14 CFR Part 25: Section 25.1529, Amendment 25-54 and Appendix H, Amendment 25-54.

4. FAA Order 8110.54A

Instructions for Continued Airworthiness: Responsibilities, Requirements and Contents, dated October 23, 2010.

5. D622N001 Boeing 757-200 Maintenance Planning Data (MPD) Document, Revision Jan 20, 2016

6. D622N001-9 Boeing 757-200 Maintenance Planning Data (MPD) Document, Section 9 - Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), dated January, 2015.

7. D6-54446 Boeing Standard Wiring Practices Manual (SPWM), Revision 57, dated June 1, 2014.

8. ST02414LA Ancra International LLC, Main Deck Cargo Handling System.

9. ST02115LA Ventura Aerospace, Inc. STC, 9g Rigid Cargo Barrier.

10. 757SC-MPD-01 Section 9

Maintenance Planning Data (MPD) Supplement VT MAE Passenger-To-Combi Modification, Revision 15, dated April 15, 2016, Section 9 – Airworthiness Limitations (AWLSs) and Certifications Maintenance Requirements.

11. 336A/AVS/004 Electrical Wiring Interconnection Systems (EWIS) - INSTRUCTIONS FOR CONTINUED AIRWORTHINESS (ICA), Revision A, dated January 24, 2013.

12. 757SC-AMM-01

STA Mobile Passenger-To-Combi Aircraft Maintenance Manual (AMM) Supplement, Revision 5, dated December 6, 2013.

13. 757SC-FIM-01

STA Mobile Passenger-To-Combi Fault Isolation Manual (FIM) Supplement, Revision 1, dated October 12, 2012.


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LIST OF REFERENCES (continued)

No. Reference Title or Description

14. 757SC-MPD-01

Maintenance Planning Data (MPD) Supplement Maintenance Planning Data (MPD) Supplement VT MAE Passenger-To-Combi Modification, Revision 15, dated April 15, 2016.

15. 757SC-SRM-01

Structural Repair Manual (SRM) Supplement VT MAE Passenger-To-Combi Modification, Revision 2, dated February 2016.

16. 757SC-SSM-01

STA Mobile Passenger-To-Combi System Schematic Manual (SSM) Supplement, Revision 3, dated April 30, 2014.

17. 757SC-WDM-01

STA Mobile Passenger-To-Combi Wiring Diagram Manual (WDM) Supplement, Revision 2, dated April 30, 2014.

18. 757SC-IPC-01

STA Mobile Passenger-To-Combi Illustrated Parts Catalog (IPC) Supplement, Revision 3, dated April 30, 2014.

19. 757SC-FRM-01

STA Mobile Passenger-To-Combi Fault Reporting Manual (FRM) Supplement, Revision 1, dated September 28, 2012.

20. 336A/CPN/009 Project Specific Certification Plan (PSCP) Winglet Compatibility with 757-200CF Configuration, Revision A, dated October 27, 2015.

LIST OF FIGURES

No. Title or Description Page

Figure 3.1 Inboard Profiles of Aircraft in Combi Configuration 6

Figure 3.2 Layout of Flight Deck and Courier Compartment 6

Figure 3.3 Interior Arrangement Diagram for Combi Configuration 7


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1 INTRODUCTION

This document presents the Instructions for Continued Airworthiness for Boeing 757-200 airplanes

modified by VT Mobile Aerospace Engineering, Inc. (previously known as ST Aerospace Mobile, Inc.) in

accordance with FAA STC ST03952AT. It complies with the requirements of references 3) and 4).

1.1 Description

This modification converts Boeing 757-200 passenger airplanes into an “8-pallet/80-passenger Combi

configuration”. This configuration shall be known as 757-200CF. In addition, VT MAE proposes to obtain

a concurrent validation of the STC from the European Aviation Safety Agency (EASA).

The Combi modification is similar to that of the 14-Pallet FedEx 757-200SF except that the forward main

deck cabin aft of the Rigid Cargo Barrier (RCB) will be converted to a Class C cargo compartment and

the main deck cabin aft of the Rigid Smoke Barrier (RSB), approximately Station 1115, is retained with

minor modification to accommodate 80 passengers in a single-class, six abreast seating arrangement and

up to 3 flight attendants. The passenger cabin compartment and main deck cargo compartment (MDCC)

are separated by the rigid smoke barrier.

The following components of the modification are identical to the 14-Pallet FedEx 757-200SF: the Main

Deck Cargo Door Surround Structure (DSS), the hydraulic system, and the E1A/E1B elevator control

cables and shroud modification. The following items are adapted from the 14-pallet freighter configuration:

9g RCB per STC ST02115LA, cargo loading system (CLS), forward fuselage courier area, environmental

control system (ECS), and the “one-minute” fire/smoke detection system. There is an amendment to STC

ST02115LA for the 9g RCB and the MDCC will be equipped with a Halon 1301 fire suppression system.

VT MAE was granted with a time-limited STC ST03952AT by FAA and EASA in order to allow VT MAE to

redesign the Main Deck Cargo Door and show full compliance to 14 CFR Part 25, Section 25.783

Amendment 25-114 and CS 25.783 Amendment 9.

The Main Deck Cargo Door (MDCD) redesign replaces the existing two vent doors including the locks

with One (01) new vent door and Two (02) new vent door sensors. The existing Four (04) latch cams

without locks are replaced with new ones to allow locking of the cams. Eight (08) new view ports are

added to facilitate viewing of the eight new locks and eight latch cams. The existing lock sensors at the

lower door sill are retained and renamed as door open/close sensors. Also, Four (04) additional sensors

are added on the new lock shaft. All these sensors are connected to the flight deck annunciation and new


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indicating lights on the new P83 panel and the main wheel well area. The P82 panel is modified to include

a switch to allow manual operation of the MDCD.

A Compatibility Study between Aviation Partners Boeing (APB) 757-200 Blended Winglet (BW)

configuration, approved in STC ST01518SE, with the 757-200CF configuration, was performed to amend

the existing STC ST03952AT, under FAA Project No. SA 14948AT-T. Certification of this compatibility

study was done in accordance to 336A/CPN/009 (Reference 20).

1.2 Concurrent Modifications

Main Deck Cargo Loading System, supplied by Ancra International LLC, per STC ST02414LA.

9g Rigid Cargo Barrier, supplied by Ventura Aerospace, Inc., per STC ST02115LA.

Main Deck Cargo Door, modified and installed by VT Mobile Aerospace Engineering, Inc., per STC Project

No. ST13005AT-T

1.3 Applicability

This modification may be applied to Boeing Model 757-200 airplanes with the four-door fuselage

configuration and powered by RB211-535E4 engines. Airplanes in all certified weight categories are

suitable for this modification. There are no changes to the airplane’s certified weight limits as a result of

the Passenger-to-Combi modification. The Combi modification cannot be installed on airplanes with a

winglet STC installed and neither can a winglet STC be installed on airplanes which have been converted

to the Combi configuration.

This Instruction for Continued Airworthiness is applicable for airplanes shown in the Effectivity Table

below.

Model-Series Effectivity Code Block Number Serial Number Registration

757-28A 239 NB239 25622 OO-TFA

1.4 Modification Facilities

The modifications shall be performed at FAA approved ST Aerospace Engineering Pte Ltd (STA

Engineering) facility in Singapore.

ST Aerospace Engineering 600 West Camp Road, Seletar Airport Singapore 797654 Tel: (65) 6-284-8007




2 MAINTENANCE INSTRUCTIONS

These Instructions for Continued Airworthiness (ICA) were developed in accordance with 14 CFR Part

25, Section 25.1529 and Appendix H at Amendment 25-54 (reference 3) and FAA Order 8110.54A, dated

October 23, 2010 (reference 4). In addition, these ICA are prepared in English.

Supplement manuals must be used in conjunction with the Boeing 757-200 baseline manuals for areas

affected by the modification or otherwise specified. Information from the baseline manuals such as

definitions, abbreviations and precautions is applicable to the supplement manuals. Should any

information contained in the baseline manuals conflict with the supplement manuals, information in the

supplement manuals shall take precedence.

2.1 Control and Operation

Control and operation of the added and modified systems is shown in the VT MAE System Schematic

Manual (SSM) Supplement, 757SC-SSM-01.

2.2 Maintenance Checks

Following are the Task Category abbreviations, as shown in the Boeing Maintenance Planning Data

(MPD) document, D622N001 (reference 5):

LU = Lubrication

SV = Servicing

OP = Operational Check

IN = Inspection

FC = Functional Check

RS = Restoration

DS = Discard

There are additional specific tasks required to maintain the structure added or changed by VT MAE for

the Passenger-to-Combi conversion. The inspections required are called out in the VT MAE Maintenance

Planning Data (MPD) Supplement, 757SC-MPD-01.




2.3 Structural Repair Information

Refer to the VT MAE Structural Repair Manual (SRM) Supplement, 757SC-SRM-01 for approved repair

schemes and Maintenance Planning Data (MPD) Supplement, 757SC-MPD-01 for structural information

regarding Damage Tolerance Rating Systems developed in accordance with the requirements under §§

25.571 and 25.1529 of Federal Aviation Regulations.

For damage which is not covered by the SRM Supplement, contact VT Mobile Aerospace Engineering,

Inc. Engineering Department (251) 436-0181 with complete details of the damage (and proposed repair

scheme, if available). VT MAE will provide an approved repair scheme, reviewed and complete with

damage tolerance assessment.

For repairs classified as Structural Significant Items (SSI’s), which are unique to VT MAE 757-200CF and

have fatigue crack growth characteristics warranting special attention and requiring supplemental

inspections, VT MAE will develop necessary inspection techniques and requirements that will lead to the

timely detection of damage and continuing structural airworthiness.

2.4 Airplane Maintenance Manual

The VT MAE Airplane Maintenance Manual (AMM) Supplement, 757SC-AMM-01 contains the required

procedures and instructions necessary to maintain the VT MAE 757-200CF in an airworthy condition. This

document can be provided to the operator as a hard-copy or on a CD-ROM, or both.

2.5 Fault Isolation Manual

The VT MAE Fault Isolation Manual (FIM) Supplement, 757SC-FIM-01 contains the information necessary

to isolate, document corrective action steps, and correct faults in systems and equipment installed to

maintain the VT MAE 757-200CF in an airworthy condition. This document can be provided to the operator

as a hard-copy or on a CD-ROM, or both.

2.6 Component Maintenance Manuals

A list of the Component Maintenance Manuals (CMM) applicable to the VT MAE Passenger-to-Combi

modification is contained in Appendix B. These documents can be provided to the operator as a hard-

copy or on a CD-ROM, or both.




2.7 Wiring Diagram Manuals

The VT MAE Wiring Diagram Manual (WDM) Supplement, 757SC-WDM-01 shows all wiring additions,

deletions and modifications required for the VT MAE Passenger-to-Combi modification. This document

can be provided to the operator as a hard-copy or on a CD-ROM, or both.

2.8 Illustrated Parts Catalog

The VT MAE Illustrated Parts Catalog (IPC) Supplement, 757SC-IPC-01 identifies the parts used in the

VT MAE Passenger-to-Combi modification. This document can be provided to the operator as a hard-

copy or on a CD-ROM, or both.

2.9 Maintenance Program

The maintenance program for the VT MAE 757-200CF airplanes is contained in the Boeing Maintenance

Planning Data, D622N001 and VT MAE Maintenance Planning Data (MPD) Supplement, 757SC-MPD-

01.

2.10 Maintenance Program Revisions

VT MAE will provide revision service for all Instructions for Continued Airworthiness manual supplements

to all operators of the VT MAE 757-200CF airplanes for as long as the modified airplanes are in service.

VT Aerospace Mobile, Inc. Engineering Department, phone (251) 438-0181, is responsible for distribution

of document revisions. Operators are requested to notify VT MAE of any changes which could affect the

timely distribution of applicable revised documents.

2.11 Fault Reporting Manual

The VT MAE Fault Reporting Manual (FRM) Supplement, 757SC-FRM-01 contains the information

necessary to reporting faults in systems and equipment installed to maintain the VT MAE 757-200CF in

an airworthy condition. This document can be provided to the operator as a hard-copy or on a CD-ROM,

or both.




3 AIRPLANE

Figure 3.1 – Inboard Profiles of Aircraft in Combi Configuration

Figure 3.2 – Layout of Flight Deck and Courier Compartment




Figure 3.3 – Interior Arrangement Diagram for Combi Configuration

4 SERVICING

Servicing information covering the systems and components added or modified by this conversion is

contained in the list of the Component Maintenance Manuals, found in Appendix B, and in VT MAE

Airplane Maintenance Manual (AMM) Supplement, 757SC-AMM-01.

5 AIRPLANE HANDLING

There are no changes to the following 757-200CF airplane handling procedures (except see NOTE 1) as

a result of the VT MAE Passenger-to-Combi conversion:

• Towing instructions and limitations

• Mooring, jacking and leveling information

NOTE 1: Towing is disallowed if the Main Deck Cargo Door (MDCD) is open. Operation of the

MDCD is also not allowed while the airplane is on jacks, ref: 757SC-AMM-01 Chapters 7 & 9.

6 PLACARDS AND MARKINGS

Required placards and markings for this modification are defined in Chapter 11 of the VT MAE Airplane

Maintenance Manual (AMM) and Illustrated Parts Catalog (IPC) Supplements.




7.3 Electrical Wiring Interconnection System (EWIS) 14 CFR Part 25, Section 25.1729

The compliance to 14 CFR Part 25, Section 25.1729, Amdt 25-123, Instructions for Continued

Airworthiness: EWIS, is substantiated by VT MAE Enhanced Zonal Analysis Procedure (EZAP) Report,

336A/AVS/003 Rev B dated February 1, 2012, which consists of maintenance and inspections task,

intervals, and procedures for zones containing added, deleted or disturbed Electrical Wiring

Interconnection System (EWIS).

The EZAP Report is developed based on guidance provided in FAA AC25-27A, the analysis performed

for the zones affected by the VT MAE Passenger-to-Combi conversion determine that zones 223, 224,

233, 234, 243, 244, 253 and 254 do not have existing FAA approved EWIS ICA for the zones. EWIS ICA

- Source Document 336A/AVS/004 Rev A dated January 24, 2013 is created and contains the new EWIS

ICA maintenance and inspection task, intervals and procedures for the converted airplane.

VT MAE has fulfilled the requirements contained in Appendix H, Section H25.4 and H25.5 by incorporating

EZAP findings into VT MAE Maintenance Planning Data (MPD) Supplement, 757SC-MPD-01 for

Airworthiness Limitations sections and Electrical Wiring Interconnection System (EWIS) Instructions for

Continued Airworthiness.

The modification to the MDCD system on 757-200 aircraft has been reviewed per the guidance provided

in FAA AC 25-27A. It has been determined that the modification does not necessitate a revision to the

EWIS ICA that were required to be developed by § 26.11(b) / § 25.1729.


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APPENDIX A: MMEL / MEL

A proposed Master Minimum Equipment List (MMEL) revision shall be prepared by VT MAE and submitted to the

FAA Seattle Aircraft Evaluation Group for review, approval and incorporation into the Boeing 757-200 MMEL.


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APPENDIX B: COMPONENT MAINTENANCE MANUAL (CMM) LIST

P/N & CMM Number

Title Rev Vendor

CMM-116817-5 Electrofilm Mfg. Co. P/N 116817-5 Boeing SCD P/N S210W004-5

N/C Electrofilm Mfg. Co.

398906-1, 398906-2 CMM 21-20-47

Seven Inch Diameter Electric Butterfly Shutoff Valve 3 Honeywell

22890-2 Overhaul and Maintenance Instructions, Hydraulic Lock Sequence

D Sterer

473597-4 26-10-59

Smoke Detector Assemblies 4 Kidde Aerospace

473925 26-11-73

Cargo Electronic Unit 6 Kidde Aerospace

446681 26-11-84

Cargo Bay Aural Warning Panel and Aural Sounder Panel

2 Kidde Aerospace

474506 26-12-02

Main Deck Smoke Control Panel 1 Kidde Aerospace

1U1136 29-00-01

Solenoid Operated Three-Way, Two-Position Valve 3 Smiths

1121S1 29-01-01

Hydraulic Flow Regulator Valve - Parker Hannifin

211C223 (S271T452) 29-09-01

Hydraulic Pressure Switch 3 Eaton

6F2362 29-09-13

Restrictor, Check, Filtered One Way - CrissAir

6147 (10-3204) 29-20-02

Valve, Hydraulic Flow Regulator 1 Pneudraulics

A62080 29-20-02

Hydraulic Priority Valve 4 Crane

316525 29-20-46

Hydraulic Hand Pump - Crane

147265 29-33-01

Main Deck Cargo Door Control Valve 2 Whittaker Controls

1U1168 (10-61239-1)

52-30-01 Cargo Door Locking Actuator 6 Smiths

65-27999-3 65-28919-7 52-32-31

Pressure Door Actuator Assembly 1 Boeing

65-28919-5,-6,-13 65-28943-2 52-32-51

Cargo Door Latch Actuator Assembly 2 Boeing


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P/N & CMM Number

Title Rev Vendor

1058 52-60-01

Hydraulic Relief Valve - Pneudraulics

65-28441-2,-3 52-30-41

Cargo Door Cam Actuator Assembly 5 Boeing

P183-395-1 38-14-01

Potable Water Tank Valves 1 Circle Seal Controls, Inc.


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APPENDIX C – ICA CHECKLIST

This Appendix contains a completed ICA Checklist for the VT MAE Passenger-to-Combi conversion. The ICA Checklist was compiled from the Transport Category Aircraft ICA Checklist presented in Appendix 2 of FAA Order 8110.54A (reference 4).

Note: the term ‘not applicable’ means that this modification did not add, delete or modify the item(s) listed under the heading ‘Requirement’.

Requirement 14 CFR Part 25 Appendix

H Section

Location in VT MAE ICA document

(n/a) ICA for each aircraft engine. H25.1(b) Not applicable

(n/a) ICA for each propeller. H25.1(b) Not applicable

(√) ICA for each appliance. H25.1(b) Section 2

(√) Required information on the interface of (√) appliances, (n/a) aircraft engines, and (n/a) propellers with the aircraft.

H25.1(b) Section 2

(n/a) If ICA are not supplied by the manufacturer of an (n/a) appliance, (n/a) aircraft engine, or (n/a) propeller installed on the aircraft, the ICA for the aircraft must include (n/a) the information essential to the continued airworthiness of the aircraft.

H25.1(b) Not applicable

(√) Applicant’s program showing how they or the manufacturers of products and appliances installed on the airplane will distribute changes to the ICA.

H25.1(c) Section 2.10

(√) ICA in a manual or manuals.

(√) Manuals arranged for easy and practical use.

H25.2(a)

H25.2(b) Section 2

(√) Manuals prepared in English. H25.3 Section 2

(√) Manuals must include introductory information explaining the airplane’s features and data necessary for maintenance or preventive maintenance. Includes any other information on the (√) content, (√) scope, (√) purpose, (√) arrangement, (√) applicability, (√) definitions, (√) abbreviations, (√) precautions, (√) units of measurement, (√) referenced publications.

H25.3(a)(1) Section 2





H Section


(√) Description of the (√) aircraft modification and its systems and installations, (n/a) aircraft engines and its systems and installations, (n/a) propellers and its systems and installations, and (√) appliances and its systems and installations.

H25.3(a)(2) Section 1.1, 1.2

(√) Basic control and operating information describing (√) how the modified aircraft components and systems are controlled and (√) how the modified aircraft components and systems are operated, including (n/a) any special procedure and limitations.

H25.3(a)(3) Section 2.1

(√) Servicing information covering (√) servicing points, (√) capacities of tanks, (√) capacities of reservoirs, (√) types of fluids to be used, and (√) pressures applicable to the various systems.

H25.3(a)(4) Section 2.4

(√) Location of access panels for (√) inspection and (√) servicing.

H25.3(a)(4) Section 2.4

(√) Servicing information covering (√) locations of lube points, (√) lube used.

H25.3(a)(4) Sections 2.4, 2.9, 4

(√) Equipment required for servicing. H25.3(a)(4) Section 2.4, 4

(n/a) Tow instructions and limitations. H25.3(a)(4) Section 5

(n/a) Mooring information. H25.3(a)(4) Section 5

(n/a) Jacking information. H25.3(a)(4) Section 5

(n/a) Leveling information. H25.3(a)(4) Section 5

(√) Scheduling information for each part of (√) aircraft, including periods for (√) cleaning, (√) inspecting, (√) adjusting, (√) testing, and (√) lubricating; and (√) the work recommended at these periods. Include any special notes, cautions or warnings in the maintenance section of the manual.

H25.3(b)(1) Section 2.4, 2.9, Appendix B





H Section


(n/a) Scheduling information for (n/a) aircraft engines, including recommended periods for (n/a) cleaning, (n/a) inspecting, (n/a) adjusting, (n/a) testing, and (n/a) lubricating; and (n/a) the work recommended at these periods.

Note: This information may be in the FAA accepted aircraft engine ICA. Include any special notes, cautions or warnings in the maintenance section of the manual.

H25.3(b)(1) Not applicable

(n/a) Scheduling information for (n/a) the aircraft’s auxiliary power unit, including recommended periods for (n/a) cleaning, (n/a) inspecting, (n/a) adjusting, (n/a) testing, and (n/a) lubricating; and (n/a) the work recommended at these periods.


(n/a) Scheduling information for (n/a) aircraft propellers, including recommended periods for (n/a) cleaning, (n/a) inspecting, (n/a) adjusting, (n/a) testing, and (n/a) lubricating; and (n/a) the work recommended at these periods. Include any special notes, cautions or warnings in the maintenance section of the manual.


(n/a) Scheduling information for (n/a) aircraft accessories, including recommended periods for (n/a) cleaning, (n/a) inspecting, (n/a) adjusting, (n/a) testing, and (n/a) lubricating; and (n/a) the work recommended at these periods. Include any special notes, cautions or warnings in the maintenance section of the manual.


(n/a) Scheduling information for (n/a) aircraft instruments, including recommended periods for (n/a) cleaning, (n/a) inspecting, (n/a) adjusting, (n/a) testing, and (n/a) lubricating; and (n/a) the work recommended at these periods. Include any special notes, cautions or warnings in the maintenance section of the manual.


(√) Scheduling information for (√) aircraft equipment, including recommended periods for (√) cleaning, (√) inspecting, (√) adjusting, (√) testing, and (√) lubricating; and (√) the work recommended at these periods. Include any special notes, cautions or warnings in the maintenance section of the manual.






H Section


(√) Degree of inspection for each part of (√) modified aircraft and its (n/a) aircraft engines, (n/a) the auxiliary power unit, (n/a) propellers, (n/a) accessories, (n/a) instruments, and (√) equipment.

H25.3(b)(1) Section 2.4, Appendix B

(√) The applicable wear tolerances. H25.3(b)(1) Section 2.4, Appendix B

Applicant may refer to an (n/a) accessory, (n/a) instrument, or (n/a) equipment manufacturer as the source of this information if applicant shows (n/a) that the item is exceptionally complex and requires specialized maintenance techniques, test equipment, or expertise.


(n/a) The recommended overhaul periods and necessary cross-references to the ALS.

H25.3(b)(1) Appendix B

(√) An inspection program that includes (√) the frequency and (√) extent of the inspection necessary to provide for continued airworthiness.

H25.3(b)(1) Section 2.9

(√) All CMR necessary for airworthiness. H25.3(b)(1) Section 7

(√) Troubleshooting information describing (√) probable malfunctions, (√) how to recognize those malfunctions, and (√) remedies for them.

H25.3(b)(2) Sections 2.4, 2.5

(n/a) Descriptions of the order and method of (n/a) removing and (n/a) replacing products (aircraft engines and propellers) with any necessary precautions.


(√) Descriptions of the order and method of (√) removing and (√) replacing parts with any necessary precautions.

H25.3(b)(3) Sections 2.4, 2.8 and Appendix B

(√) Other instructions, including (√) storage limitations and procedures for (√) testing system during ground running, (including trim checks, alignment, and calibration), (√) making symmetry checks, (√) weighing and determining the center of gravity, (√) lifting, and (√) shoring.

H25.3(b)(4) Section 2.4





H Section


(n/a) Diagrams of structural access plates and information needed to gain access for inspections when access plates are not provided.

H25.3(c) Not applicable

(n/a) Details to apply special inspection techniques, including radiographic and ultrasonic testing where such processes are specified.

H25.3(d) Not applicable

(√) Information needed to apply protective treatment to structure after inspection and/or maintenance.

H25.3(e) Section 2.9

(√) All data on structural fasteners, such as (√) installation requirements, (√) type, (√) identification, (√) discard recommendations, and (√) torque values.

H25.3(f) Section 2.3, 2.4

(n/a) List of special tools needed. H25.3(g) Not applicable

(√) ICA must contain a section, titled Airworthiness Limitations that is (√) segregated and (√) clearly distinguishable from the rest of the document.

Note: The appropriate ACO office will evaluate and approve the Airworthiness Limitations Section (ALS) in the applicant’s ICA. Airworthiness Limitations cannot be altered, established or cancelled without coordinating with the appropriate Certificate Management Aircraft Certification Office.

H25.4(a) Section 7

(√) ALS must describe each mandatory replacement time, structural inspection interval, and related structural inspection procedures approved under 14 CFR §§ 25.571.

H25.4(a)(1) Section 7.1

(√) ALS must describe each mandatory replacement time, inspection interval, related inspection procedure, and all critical design configuration control limitations approved under 14 CFR § 25.981 for the fuel tank system.

H25.4(a)(2) Section 7.2

(√) If the ICA consist of multiple manuals, the ALS required by this paragraph must be in the principal manual.

H25.4(b) Section 7





H Section


(√) ALS must contain a legible statement in a prominent location that reads: “The Airworthiness Limitations Section is FAA approved and specifies maintenance required under 14 CFR §§ 43.16 and 91.403 of the Federal Aviation Regulations, unless an alternative program has been FAA approved.” If there are no new (including changes) Airworthiness Limitations associated with the project, the Airworthiness Limitations Section should include the following statement: “There are no new (or additional) Airworthiness Limitations associated with this equipment and/or installation.”

H25.4(b) Section 7

form eng-dpm-005-2, rev 2

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