AD 99-04-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | International Aero Engines AG (IAE) | V2522-A5 | Airworthiness Directives; International Aero Engines AG (IAE) V2500-A5/-D5 Series Turbofan Engines |
| engine | International Aero Engines AG (IAE) | V2524-A5 | Airworthiness Directives; International Aero Engines AG (IAE) V2500-A5/-D5 Series Turbofan Engines |
| engine | International Aero Engines AG (IAE) | V2525-D5 | Airworthiness Directives; International Aero Engines AG (IAE) V2500-A5/-D5 Series Turbofan Engines |
| engine | International Aero Engines AG (IAE) | V2527-A5 | Airworthiness Directives; International Aero Engines AG (IAE) V2500-A5/-D5 Series Turbofan Engines |
| engine | International Aero Engines AG (IAE) | V2527E-A5 | Airworthiness Directives; International Aero Engines AG (IAE) V2500-A5/-D5 Series Turbofan Engines |
| engine | International Aero Engines AG (IAE) | V2528-D5 | Airworthiness Directives; International Aero Engines AG (IAE) V2500-A5/-D5 Series Turbofan Engines |
| engine | International Aero Engines AG (IAE) | V2530-A5 | Airworthiness Directives; International Aero Engines AG (IAE) V2500-A5/-D5 Series Turbofan Engines |
| engine | International Aero Engines AG (IAE) | V2533-A5 | Airworthiness Directives; International Aero Engines AG (IAE) V2500-A5/-D5 Series Turbofan Engines |
Unsafe Condition
High Pressure Compressor (HPC) stage 9-12 drum failure due to higher stresses than originally predicted, which could result in an uncontained engine failure and damage to the aircraft.
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Required Actions
Remove from service HPC stage 9-12 drums, part number 6A4156, prior to reaching new reduced cyclic life limits as specified in IAE SB V2500-ENG-72-0293. Replace with serviceable parts. No alternative cyclic retirement life limits may be approved without Manager, Engine Certification Office approval.
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Compliance Time
Prior to accumulating the new, reduced cyclic life limits as described in IAE SB V2500-ENG-72-0293.
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Affected Aircraft
International Aero Engines AG (IAE) Models V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2530-A5, V2533-A5, V2525-D5, V2528-D5 turbofan engines installed on Airbus A319, A320, A321, and McDonnell Douglas MD-90 series aircraft.
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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