Service Letter No. 114 BG

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Service Letter No. 114 BG
RECIPROCATING ENGINE AND ACCESSORY MAINTENANCE PUBLICATIONS 
DATE:

February 13, 2019

TO:

Owners and Operators of Lycoming Aircraft Engines

REASON FOR REVISION:

Added listings for engine models TEO-540-A1A and TEO-540-C1A. Revised the paragraph on page 2 regarding email notification. Corrected listings for revisions to PC-615 by adding SSP-1084-1

Service Letter No. 247 J

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SHELF LIFE REQUIREMENTS
DATE:

August 23, 2018

TO:

All Owners and Operators of Lycoming Engines Aircraft Engines

SUBJECT:

Shelf Life Requirements

REASON FOR REVISION:

Added part numbers 37B19774-472, LW-12008, and STD-1934 to Table 1; Removed part number 951392 from Table 2; added part number AV951392 to Table 2

Service Letter No. 275 A

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Warranty Procedure for Exhaust System Replacement Referenced in the most current revision of SB 627 
DATE:

May 17, 2018

TO:

All Owners and Operators of Lycoming Engines Model TIO-540-AJ1A

SUBJECT:

Warranty Procedure for Exhaust System Replacement Referenced in the most current revision of SB627

REASON FOR REVISION:

Updated language to refer to the most current revision of SB627

Service Letter No. 253 C

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Warranty Repair of AVStar Fuel Systems, Inc. Fuel Control Products
Date:

April 16, 2018

TO:

All Owners and Operators of Lycoming Piston Aircraft Engines

SUBJECT:

Warranty Repair of AVStar Fuel Systems, Inc. Fuel Control Products

REASON FOR REVISION:

Update AVStar warranty information sheet, and contact information.

Service Letter No. 273

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SERVICE BULLETIN NO. 632 CUSTOMER CARE PROGRAM
DATE RELEASED:

January 5, 2018

TO:

Customers affected by LW-13923 Connecting Rod Bushings listed in Table 2 of Service Bulletin No. 632

 

Service Letter No. 272 A

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RELEASE OF NEW SILICONE ROCKER COVER GASKETS
DATE RELEASED:

November 21, 2017

TO:

All Owners and Operators of Lycoming Aircraft Engines

REASON FOR SERVICE LETTER:

Add new silicone gasket part number

Service Letter No. 270

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DATE RELEASED:

April 5, 2017

TO:

All Owners and Operators of Lycoming Direct Drive Engines

REASON FOR SERVICE LETTER:

This Service Letter identifies extended maintenance intervals as benefits of routine exclusive use of
approved unleaded fuels identified in the latest revision of Service Instruction No. SI-1070 for Lycoming
engine models. 

Service Letter No. 267

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DATE RELEASED:

February 16, 2017

TO:

All Owners and Operators of Lycoming Aircraft Engines

REASON FOR REVISION:

Warranty and Owner Registration is available via the internet for all owners and operators of Lycoming aircraft engines. This website registration tool replaces printed warranty registration cards previously shipped in the engine packets. 

Service Letter No. 271

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DATE RELEASED:

February 16, 2017

TO:

All Owners and Operators of Lycoming Aircraft Engines.

REASON FOR PUBLICATION:

Updated instructions on accessing technical publications from the Lycoming.com website. 

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Service Letter No. 255 A

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Supersedes Service Letter No. L255

May 13, 2016

To All Owners and Operators of Lycoming Piston Aircraft Engines

An alternate diaphragm-type fuel pump P/N 62B26931 is approved as an equivalent replacement for the current fuel pump P/N LW-15473 except as noted in Table 1.

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