STD-1214
SCREW-#10-32 X .38 LG TRUSS HD
Revision
-B
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knowledge base
Service Instruction No. 1593
Service Instruction No. 1593 Incorrectly marked alternator belts. DATE: May 12, 2025 MODELS AFFECTED: TEO-540-C1A TIME OF COMPLIANCE: N/A This Service Instruction is in response to incorrectly marked alternator belts having reached the field on engines or as spare parts. Lycoming has discovered that a population of 37C28529-955 alternator belts were released to the field identified as 37C28529-955...
News
2026 Engine School Training Dates
REGISTER NOW, CLICK HERE Lycoming Engines is pleased to announce its 2026 training schedule. The training program is now a single class, 5-day course that blends content from both prior courses, which focused on engine theory and disassembly/reassembly. The intent of the redesign is to make it easier for individuals to attend the training in a single-week format. Cost for the course is $1,825...
knowledge base
Service Bulletin No. 630B
Service Bulletin No. 630B (Supersedes Service Bulletin No. 630A) June 11, 2025 MODELS AFFECTED: All Lycoming engines TIME OF COMPLIANCE: At every maintenance event that requires removal of each cylinder
STD-1215
BOLT-.250-20 X 1.25 LG HEX HD
Revision
--
STD-1216
INSERT-.375-16 UNC X .562 LONG
Revision
-B
STD-1221
RING-.81 DIA X.042 THICK
Revision
-M
STD-1223
NIPPLE-.375 FLARED TUBE
Revision
-B
STD-1227
WASHER-.250 PLAIN
Revision
-D
STD-1234
SCREW-#10-32 X .63 LONG
Revision
-A