Service Instruction No. 1546

DATE: October 4, 2012 

TIME OF COMPLIANCE

At each removal and installation of the starter electrical lead.

MODELS AFFECTED

All Lycoming direct drive engines.

This Service Instruction includes specific installation and removal requirements of the electrical leads for Hartzell Engine Technologies (HET), LLC starters.

Service Instruction No. 1549

DATE: June 27, 2012 

MODELS AFFECTED

Engines that have Fuel Pump Plunger P/N 61544 installed.

TIME OF COMPLIANCE

At next engine overhaul, whenever fuel pump plunger appears damaged, or earlier at owner’s discretion.

This Service Instruction is notification that Fuel Pump Plunger P/N 23D26777 is an approved replacement  for Fuel Pump Plunger P/N 61544.