AD 2018-04-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A320-271N | Airworthiness Directives; Airbus Airplanes |
Unsafe Condition
high-pressure compressor (HPC) rear hub knife edge seal fracture, which could lead to a sudden increase in high rotor vibration and stall in certain PW1100G-JM engines, and consequent IFSDs or rejected takeoffs.
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Required Actions
de-pair the affected engines and discontinue Extended range Two-engine aeroplanes Operations (ETOPS) for aircraft fitted with affected engines.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
Airbus Model A320-271N, A321-271N, and A321-272N airplanes, with certain IAE engines.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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