AD 2010-18-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pratt | & Whitney (PW) PW4000 Series Turbofan | Airworthiness Directives; Pratt & Whitney (PW) PW4000 Series Turbofan Engines |
Unsafe Condition
Reports of cracked locking and loading slots in the high-pressure compressor (HPC) drum rotor disk assembly, which could result in rupture of the HPC drum rotor disk assembly and damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform initial and repetitive local fluorescent penetrant inspections (FPI) for cracks in the blade locking and loading slots of the HPC drum rotor disk assembly, as specified in Table 1 of the AD. Remove from service any HPC drum rotor disk assembly found with a crack in the blade loading and locking slots.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the compliance times specified in Table 1 of the AD, based on the removal of blades from specific stages during a shop visit.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pratt & Whitney PW4052, PW4056, PW4060, PW4062, PW4062A, PW4074, PW4077, PW4077D, PW4084D, PW4090, PW4090-3, PW4152, PW4156A, PW4158, PW4164, PW4168, PW4168A, PW4460, and PW4462 turbofan engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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