Battery Acid Spillage
Service Bulletin 2
Battery Shift in Battery Box (Repair)
Service Bulletin 3
Fin Brace Wires
Service Bulletin 4
Tail Wire Rigging
Service Bulletin 4a
Correction of Service Bulletin 4
Service Bulletin 5
Propeller AD77-12-6
Service Bulletin 6
Product Improvement Redesigned
Inverted Oil System
Service Bulletin 7
Product Improvement Fin Brace Wire
and Attachment Bolts
Service Bulletin 8
Loosening of Exhaust and Fuel Injector
Attachment Nuts
Service Bulletin 9
Left Hand Exhaust Manifold
Heat Exchanger Section
Service Bulletin 10
Inspection Requirement
Service Bulletin 11
Redesigned Oil Cooler System Installation
Service Bulletin 11 page 1
Service Bulletin 11 page 2
Service Bulletin 11 page 3
Service Bulletin 11 page 4
Service Bulletin 11 page 5
Service Bulletin 12
Inspection of Outer Main Wheel Bearings and Replacement of Seal Assemblies
Service Bulletin 12 page 1
Service Bulletin 12 page 2
Service Bulletin 12 page 3
Service Bulletin 13
Inspection of Air Intake Duct (Hose)
Service Bulletin 14
Engine Mount Inspection
Service Bulletin 15
Horizontal Stabilizer Spar Inspection
Lycoming Service Bulletins
(in PDF)
Lycoming Service Letter No. L180B
Subject: Engine Preservation for Active
and Stored Aircraft
Lycoming Service Instructions No. 1080B
Subject: Maintenance Items for Special Attention
