Battery Acid Spillage
Service Bulletin 2
Battery Shift in Battery Box (Repair)
Service Bulletin 3
Fin Brace Wires
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
Service Bulletin15
has been superseded by SB-GL12-01R.
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
