Service Instruction No. 1343 C

Supersedes Service Instruction No. 1343B

March 10, 2016

MODELS AFFECTED

The following Wide Cylinder Flange Engines that are equipped with a front crankcase mounted propeller governor:

  • O, IO, LIO, AIO, AEIO-320 Series
  • O, LO, IO, LIO, AIO, AEIO, TO, TIO-360 Series
  • O, IO, AEIO, TIO, LTIO-540 Series
  • IO-580 Series
  • IO-720
TIME OF COMPLIANCE

At each installation of propeller governor set screw

Service Letter No. 221 C

Supersedes Service Letter No. L221B and Supplement No. 1 to Service Letter No. L221B

Models Affected

To all Owners and Operators of Lycoming Piston Aircraft Engines

Lycoming requires that any Precision Airmotive Corporation fuel control product that needs repair, within the warranty period, be sent directly to an Authorized Precision Airmotive Corporation Product Support Center for verification and corrective action.

Service Letter No. 234 B

Supersedes Service Letter No. L234A

DATE RELEASED:

June 15, 2007

MODELS AFFECTED:

To all Owners and Operators of Lycoming Reciprocating Aircraft Engines

Lycoming Engines is pleased to announce a special tool rental program. This program is designed to support your need for special tools required for maintaining Lycoming reciprocating engines. Please check Lycoming Special Tool Catalog SSP-384 for proper tool application.

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