AD 86-08-05 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM International, S.A. | CFM56-3 | CFM INTERNATIONAL Model CFM56-3/-3B Series Engines |
| engine | CFM International, S.A. | CFM56-3B | CFM INTERNATIONAL Model CFM56-3/-3B Series Engines |
Unsafe Condition
Engine shutdown from radial drive shaft disengagement.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect oil distributor Part Number 335-305-800-0 and spirolock Part Number 649-363-137-0 in accordance with CFMI SB 72-205 Revision 3, with torque check increased to 100 inch-lbs. and 2 hours cool down time. Depending on inspection results, re-inspect spirolock within specified intervals, replace components, or reinspect within 375 hours time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 80 hours time in service (TIS) after the effective date of this AD
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Affected Aircraft
CFM International, S.A. CFM56-3/-3B series turbofan engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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