AD 2016-19-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | International | Aero | Airworthiness Directives; International Aero Engines AG Turbofan Engines |
Unsafe Condition
Failure of the high-pressure turbine (HPT) stage 2 seals, caused by blockage of the No. 4 bearing seal seat's anti-weep circuit, leading to uncontained HPT seal release, damage to the engine, and damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the HPT No. 4 bearing front seal seat, part numbers 2A0066, 2A1998, and 2A3432, and the HPT No. 4 bearing rear seal seat, part numbers 2A0067, 2A1999, and 2A3433, and replace them with parts eligible for installation. Inspect the HPT rotor and stator assembly, and replace them with eligible parts if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
International Aero Engines AG (IAE) V2500-A1 turbofan engines with specific serial numbers processed using methods susceptible to seal seat oil blockage.
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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