Airworthiness Directive · Amendment 39-23446 · Turbine engine compressor section
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 with a 3rd stage high-pressure compressor (HPC) rotor blade having part number (P/N) 6A8353 or P/N 6A8688 installed.
The FAA is correcting an airworthiness directive (AD) that was published in the Federal Register. That AD applies to 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. As published, paragraph (g) of the regulatory text contains a typographical error. This document corrects that error. In all other respects, the original document remains the same.
At the next engine shop visit after the effective date of this AD where the 3rd stage HPC rotor blade is exposed, replace the full set of 3rd stage HPC rotor blades with parts eligible for installation.
(1) For the purpose of this AD, a “part eligible for installation” is:
(i) A 3rd stage HPC rotor blade having P/N 6C8368, 6C8403, or later approved P/N; or
(ii) A 3rd stage HPC rotor blade modified to P/N 6A8353-001 or P/N 6A8688-001.
(2) For the purpose of this AD, a “3rd stage HPC rotor blade exposure” is when any 3rd stage HPC rotor blade is removed from the HPC stage 3 to 8 drum.
(3) For the purpose of this AD, an “engine shop visit” is the induction of an engine into the shop for maintenance.
