Airworthiness Directive · Amendment 39-23126 · Turbine engine compressor sections
International Aero Engines AG Engines
This AD applies to International Aero Engines AG (IAE AG) Model V2522-A5, V2524-A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5 engines.
The FAA is adopting a new airworthiness directive (AD) for certain International Aero Engines AG (IAE AG) Model V2522-A5, V2524- A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5 engines. This AD was prompted by further analysis of an event involving an IAE AG Model V2533-A5 engine that had an uncontained failure of a high-pressure turbine (HPT) 1st-stage hub that resulted in high-energy debris penetrating the engine cowling. This AD requires revising the airworthiness limitations section (ALS) of the existing maintenance manual or instructions for continued airworthiness and the existing approved maintenance or inspection program, as applicable, to include new inspections of certain critical rotating parts. The FAA is issuing this AD to address the unsafe condition on these products.
(1) Within 90 days after the effective date of this AD, revise paragraph B.1 of the Maintenance Scheduling section in the airworthiness limitations section (ALS) of the Instructions for Continued Airworthiness (ICA) located in the applicable existing Time Limits Manual (TLM), as listed in paragraphs (g)(1)(i) through (iii) of this AD, by incorporating the information specified in table 1 to paragraph (g) of this AD:
(i) Part Number (P/N) 2A4408, TASK 05-10-00-990-000-B00 Instructions For Continued Airworthiness (V2500-A5);
(ii) P/N 2A4417, TASK 05-10-00-990-000 Instructions For Continued Airworthiness (V2500-D5);
(iii) P/N 2A4384, TASK 05-10-00-990-000-A00 Instructions For Continued Airworthiness (V2500-E5).
(2) For air carrier operations, within 90 days after the effective date of this AD, revise the existing approved maintenance or inspection program, as applicable, by incorporating the information specified in table 1 to paragraph (g) of this AD, as applicable.
| Part nomenclature | Part No. | Inspection (engine manual reference) |
|---|---|---|
| HPT Stage 1 Hub | 2A5001 | TASK 72-45-11-200-006. |
| HPT Stage 2 Hub | 2A4802 | TASK 72-45-31-200-009. |
After the actions required by paragraph (g)(1) and (2) of this AD have been done, no alternative actions are allowed unless they are approved as specified in the provisions of paragraph (i) of this AD.
