Service Instruction No. 1406 E
Crankcase Parts for Use with Large-Diameter Hydraulic Lifters
Supersedes Service Instruction No. 1406D
September 9, 2014
O-320-H2AD, -H3AD; O/LO/TO/LTO-360-E1A6D
TIME OF COMPLIANCE
At owner’s discretion (during hydraulic lifter replacement)
This Service Instruction identifies part numbers for crankcases with large-diameter hydraulic lifters.
Find a Service Center
Every Lycoming Service Center can help keep your engine up to date with all Service Instructions.