Airworthiness directives › 2025-19-13
AD 2025-19-13 Airworthiness Directives; International Aero Engines AG Engines
Models named: V2522-A5, V2524-A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, V2533-A5. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
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.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
For engines with an installed part, part number (P/N) and serial number (S/N) identified in table 1 to paragraph (g) of this AD, at the next engine shop visit after the effective date of this AD before exceeding the applicable removal cycle limit listed in table 1 to paragraph (g) of this AD or within 100 flight cycles from the effective date of this AD, whichever occurs later, remove the affected part from service and replace with a part eligible for installation. Table 1 to Paragraph (g) —Affected HPT 1st Stage and HPT 2nd Stage Hubs Part P/N S/N Removal cycle limit (cycles since new) HPT 1st-stage hub 2A5001 PKLBSK9287 100 HPT 1st-stage hub 2A5001 PKLBSS9200 4,800 HPT 1st-stage hub 2A5001 PKLBST5011 5,500 HPT 1st-stage hub 2A5001 PKLBST7489 6,200 HPT 2nd-stage hub 2A4802 PKLBST5005 4,000 HPT 2nd-stage hub 2A4802 PKLBSS9840 3,900 HPT 2nd-stage hub 2A4802 PKLBSS0301 5,000 HPT 2nd-stage hub 2A4802 PKLBSR2100 6,000
Unsafe condition
This AD was prompted by a manufacturer investigation that revealed a quality escape following angled ultrasonic inspections performed on certain high-pressure turbine (HPT) 1st-stage hubs and HPT 2nd-stage hubs. The FAA is issuing this AD to prevent failure of the HPT 1st-stage hub and HPT 2nd-stage hub. The unsafe condition, if not addressed, could result in an uncontained hub failure, release of high-energy debris, damage to the engine, damage to the airplane, and loss of the airplane.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1