이 기사의 번역을 준비하고 있습니다. 그동안 영어 원문을 임시로 표시합니다.
비즈니스 · 2011. 12. 12.1 분 읽기
Airworthiness Directives; Pratt & Whitney Corp. (PW) JT9D-7R4H1 Turbofan Engines
로컬 자동 번역 · 원본 출처 언어
요약
We are adopting a new airworthiness directive (AD) for all PW JT9D-7R4H1 turbofan engines. This AD was prompted by reports of cracks in five high-pressure compressor (HPC) shafts. This AD requires removing certain HPC shafts before their certified life limits and establishes a new, lower life-limit for these parts. We are issuing this AD to correct the unsafe condition on these products.
원본 출처 언어: Federal Register — Transportation Department원문 발표 열기 →