この記事の翻訳を準備しています。それまでの間、英語の原文を表示します。
ビジネス · 2011/12/121 分で読めます
Airworthiness Directives; Pratt & Whitney Corp. (PW) JT9D-7R4H1 Turbofan Engines
ローカル自動翻訳 · 情報源の原言語
概要
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.
情報源の原言語: Federal Register — Transportation Department原文の発表を開く →