Service Letter No. 247 J

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 Instruction No. 1570 A

Alternate Oil Sump Fitting Configuration for Aerobatic Inverted Oil System
DATE:

August 3, 2018

SUBJECT:

Alternate Oil Sump Fitting Configuration for Aerobatic Inverted Oil System

MODELS AFFECTED:

IO-540-K1K5 Engines Installed in ENAER T-35 Pillan Aircraft

TIME OF COMPLIANCE:

As required by the aircraft manufacturer, based on parts availability*

REASON FOR REVISION:

Added additional section detailing the Servicing of Engine Oil

Service Letter No. 275 A

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 Bulletin No. 627 E

EXHAUST SYSTEM INSPECTION
DATE:

May 17, 2018

SUBJECT:

Exhaust System Inspection

MODELS AFFECTED:

Lycoming Engine Model TIO-540-AJ1A

TIME OF COMPLIANCE:

If the Exhaust System is not replaced per this revision, after the initial Exhaust System Inspection, continue with subsequent repetitive Exhaust System Inspections per Table 2 in this Service Bulletin

Service Letter No. 253 C

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.

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