Service Instruction No. 1154 AA
FAA-Approved Starters and Alternators
Publications
DATE:
May 18, 2026
SUBJECT:
FAA-Approved Starters and Alternators
MODELS AFFECTED:
Lycoming engines as herein specified
TIME OF COMPLIANCE:
As required for replacement
REASON FOR REVISION:
Changed the second NOTICE on page 1 to a WARNING and revised the language. Added a listing for an additional alternator assembly for engine model TEO-540-C1A in Table 2. Added footnote to Table 2. Added a CAUTION and an engine model table on page 2. Added a row for IO-390-C in Table 1. Added footnote for IO-390-C.
