Airworthiness Directives; Pratt & Whitney Engines
Transportation Department, Federal Aviation Administration | Proposed Rule | The FAA proposes to adopt a new airworthiness directive (AD) for all Pratt & Whitney (PW) Model PW1519G, PW1521G, PW1521GA, PW1521G- 3, PW1524G, PW1524G-3, PW1525G, PW1525G-3, PW1919G, PW1919G-RC, PW1921G, PW1921G-RC, PW1922G, PW1923G, and PW1923G-A engines with a certain high-pressure compressor (HPC) module installed. This proposed AD was prompted by six reports of clashing found on either the HPC 2nd stage rotor or 3rd stage rotor caused by contact with the corresponding HPC variable stator vanes (VSV). This proposed AD would require initial and repetitive borescope inspections (BSIs) of the HPC 1st stage, 2nd s.
Reported by Maria LopezAirworthiness Directives; Pratt & Whitney Engines.
The item is dated 2026-09-17.
TeamCog is carrying it as a rulemaking report from FederalRegister.gov published documents API.
Transportation Department, Federal Aviation Administration | Proposed Rule | The FAA proposes to adopt a new airworthiness directive (AD) for all Pratt & Whitney (PW) Model PW1519G, PW1521G, PW1521GA, PW1521G- 3, PW1524G, PW1524G-3, PW1525G, PW1525G-3, PW1919G, PW1919G-RC, PW1921G, PW1921G-RC, PW1922G, PW1923G, and PW1923G-A engines with a certain high-pressure compressor (HPC) module installed.
This proposed AD was prompted by six reports of clashing found on either the HPC 2nd stage rotor or 3rd stage rotor caused by contact with the corresponding HPC variable stator vanes (VSV).
This proposed AD would require initial and repetitive borescope inspections (BSIs) of the HPC 1st stage, 2nd s…
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Official Source
FederalRegister.gov published documents API. Accessed 2026-09-17T15:00:06.523Z.