AD 2017-05-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM | International S | Airworthiness Directives; CFM International S.A. Turbofan Engines |
Unsafe Condition
Failure of the radial drive shaft (RDS) on CFM CFM56-5B engines, which could lead to failure of one or more engines, loss of thrust control, and damage to the airplane.
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Required Actions
Remove the RDS assembly, part number 305-165-101-0, and RDS outer housing, part number 301-295-106-0, and replace with parts eligible for installation.
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Compliance Time
Within 6 months after the effective date of this AD.
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Affected Aircraft
CFM International S.A. CFM56-5B models, CFM56-5B/P models, CFM56-5B/3 models, CFM56-5B/2P models, CFM56-5B/P1 models, CFM56-5B/2P1 models, and CFM56-5B/3B1 models engines with a radial drive shaft (RDS) serial number listed in Appendix A of CFM Service Bulletin CFM56-5B S/B 72-0934.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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