aircraft servicebulletin lightsport - cessna

Light SportAircraft SERVICE BULLETIN

SB15-20-01

TITLEMS21042L08 NUT REPLACEMENT

EFFECTIVITYMODEL SERIAL NUMBERS162 16200002 thru 16200207, 16200209, 16200211

thru 16200225, 16200227 thru 16200237

REASONCessna has received information that some MS21042L08 Nuts installed on the airplane at the time ofmanufacture may not have been made according to MS Specification.

DESCRIPTIONThis service bulletin provides parts and instructions to remove and replace the MS21042L08 Nutsinstalled on the airplane.

COMPLIANCERECOMMENDED. This service bulletin should be accomplished at the next 100-hour or 12-month(annual-type) inspection.

A service bulletin published by Cessna Aircraft Company may be recorded as "completed" in an aircraftlog only when the following requirements are satisfied:

1) The mechanic must complete all of the instructions in the service bulletin, including the intenttherein.

2) The mechanic must correctly use and install all applicable parts supplied with the service bulletinkit. Only with written authorization from Cessna Aircraft Company can substitute parts or rebuiltparts be used to replace new parts.

3) The mechanic or airplane owner must use the technical data in the service bulletin only asapproved and published.

4) The mechanic or airplane owner must apply the information in the service bulletin only to aircraftserial numbers identified in the Effectivity section of the bulletin.

5) The mechanic or airplane owner must use maintenance practices that are identified as acceptablestandard practices in the aviation industry and governmental regulations.

No individual or corporate organization other than Cessna Aircraft Company is authorized to make orapply any changes to a Cessna-issued service bulletin, service letter, or flight manual supplement withoutprior written consent from Cessna Aircraft Company.

Cessna Aircraft Company is not responsible for the quality of maintenance performed to comply with thisdocument, unless the maintenance is accomplished at a Cessna-owned Citation Service Center.

APPROVALCessna Aircraft Company approval has been obtained on technical data in this publication that affectsairplane compliance to ASTM standards.

TYPE OF MAINTENANCEHeavy Maintenance

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Textron Aviation Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-5800This document contains technical data and is subject to U.S. export regulations. This information has been exported from the United States

in accordance with export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991

COPYRIGHT © 2016

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CERTIFICATION

Airframe and Powerplant Mechanic (A&P)

WEIGHT AND BALANCE INFORMATION

Negligible

REFERENCES

Cessna Model 162 Maintenance Manual

NOTE: Make sure all publications used are complete and current. Refer to www.txtavsupport.com.

PUBLICATIONS AFFECTED

Cessna Model

ACCOMPLISHMENT INSTRUCTIONS

1. Prepare the airplane for maintenance.

A. Make sure that the airplane is electrically grounded.

B. Make sure that all switches are in the OFF/NORM position.

C. Disconnect electrical power from the airplane (if installed).

D. Remove the engine cowl. (Refer to the Model 162 Maintenance Manual, Chapter 71, EngineCowling - Maintenance Practices.)

E. Disconnect the airplane battery.

F. Disengage the SEC PWR circuit breaker, found on the instrument panel.

G. Attach maintenance warning tags to the battery and external power receptacle that have "DO NOTCONNECT ELECTRICAL POWER - MAINTENANCE IN PROGRESS" written on them.

2. (Refer to Figure 1.) Find, remove, and replace the MS21042L08 Nut at each of the 23 locations shownin Figure 1, Sheets 1 through 8. (Refer to the Model 162 Maintenance Manual, Chapter 20, TorqueData - Maintenance Practices.)

NOTE: Before you remove the MS21042L08 nut, mark the position of the aileron stop so it can beinstalled in the same position.

3. Do a check of the aileron travel. (Refer to the Model 162 Maintenance Manual, Chapter 27, AileronControl System - Maintenance Practices.)

4. Remove the maintenance warning tags and connect the airplane battery.

5. Install the engine cowl. (Refer to the Model 162 Maintenance Manual, Chapter 71, Engine Cowling -Maintenance Practices.)

6. Engage the SEC PWR circuit breaker.

7. Make an entry in the airplane logbook that states compliance and method of compliance with thisservice bulletin.


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Figure 1. MS21042L08 Nut Replacement (Sheet 1)

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MATERIAL INFORMATIONThe part below will be necessary to complete this service bulletin.

NEW P/N QUANTITY KEY WORD OLD P/N INSTRUCTIONS/DISPOSITION

MS21042L08 23 Nut Same Discard RemovedNut

SB15-20-01April 22, 2016

Light SportAircraft OWNER ADVISORY

SB15-20-01

TITLEMS21042L08 NUT REPLACEMENT

TO:Cessna Aircraft Owner

REASONCessna has received information that some MS21042L08 Nuts installed on the airplane at the time ofmanufacture may not have been made according to MS Specification. The locking feature of the nut maynot function as intended and the nuts could loosen over time.

COMPLIANCERECOMMENDED. This service bulletin should be accomplished at the next 100-hour or 12-month(annual-type) inspection.

LABOR HOURS

WORK PHASE LABOR-HOURSModification 4.6

MATERIAL AVAILABILITY

PART NUMBER AVAILABILITY COST

MS21042L08 * *

* Please contact Textron Aviation Parts Distribution for current cost and availability of parts listed in thisservice document. Phone at 1-800-835-4000 (Domestic) or 1-316-517-5603 (International). Send emailto: [email protected].

Based on availability and lead times, parts may require advanced scheduling.

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Textron Aviation Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-5800This document contains technical data and is subject to U.S. export regulations. This information has been exported from the United States

in accordance with export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991

COPYRIGHT © 2016

SB15-20-01Page 2 April 22, 2016

Light SportAircraft OWNER ADVISORY

SB15-20-01

WARRANTYThis bulletin is recommended. Eligible airplanes may qualify for parts and labor coverage to the extentnoted in the Labor Hours and Material Availability sections of this document.

Eligibility: Airplanes identified within the serial number effectivity of this service document must haveactive Airframe warranty coverage on the original issue date of this document and thecoverage must be active on the day the work is accomplished.

Parts Coverage: Textron Aviation-owned and Textron Aviation-authorized Service Facilities, operators, orother maintenance facilities may submit a claim for the parts required to accomplish thisservice document as defined in the Material Availability section of this document.

Labor Coverage: Textron Aviation-owned and Textron Aviation-authorized Service Facilities rated to performmaintenance on the specific model of Cessna Aircraft may submit a claim for the labornecessary to accomplish this service document as defined in the Labor Hours section ofthis document.

CreditApplication:

After this service document has been accomplished, a claim must be submitted to TextronAviation within 30 days of the service document completion. Claims for compliance of thisservice document are to be filed as a W4 type claim.

Please submit your claim form online at ww2.txtav.com/Parts or email the completedTextron Aviation Claim Form to [email protected]. If submitted on-line a ReturnAuthorization will be provided. If a paper claim is submitted your claim will be entered in tothe system and a Return Authorization will be sent to you.

The Return Authorization must accompany any required return parts (see MaterialAvailability, to the point of purchase.

Parts to be returned to Textron Aviation Parts Distribution should be forwarded to:

Textron Aviation Parts DistributionWarranty Administration285 South Greenwich RoadBldg B89, Docks 1-4Wichita, KS 67206USA

Expiration: April 22, 2017 (after this date the owner/operator assumes the responsibility for compliancecosts)

Textron Aviation reserves the right to void continued airplane warranty coverage for the parts affected bythis service document until the service document is accomplished.

NOTE: As a convenience, service documents are now available online to all our customers through asimple, free-of-charge registration process. If you would like to sign up, please visit the "CustomerAccess" link at www.txtavsupport.com to register.

aircraft servicebulletin lightsport - cessna

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