FAA Fixes Typo in Jet Engine Safety Rule
Published Date: 9/10/2026
Rule
Summary
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.
Analyzed Economic Effects
1 provisions identified: 0 benefits, 1 costs, 0 mixed.
Mandatory 3rd‑Stage HPC Blade Replacement
If your aircraft uses one of the listed International Aero Engines AG models (V2522-A5, V2524-A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, or V2533-A5) and has a 3rd stage high‑pressure compressor (HPC) rotor blade with part number P/N 6A8353 or P/N 6A8688 installed, you must replace the full set of 3rd stage HPC rotor blades with parts eligible for installation at the next engine shop visit after the effective date. The AD is effective September 24, 2026, and “parts eligible for installation” are 3rd stage HPC rotor blades having P/N 6C8368, P/N 6C8403, or a later approved P/N, or blades modified to P/N 6A8353-001 or P/N 6A8688-001.
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