airworthiness · Rule · Final rule. · Published 2021-08-18 · Effective 2021-09-22 · 86 FR 46111
Document
Document number
2021-17654
Federal Register citation
86 FR 46111
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Pratt & Whitney Turbofan
Publication date
2021-08-18
Effective date
2021-09-22
FAA docket
Docket No. FAA-2021-0447
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Pratt & Whitney PW1500G and PW1900G series turbofan engines. This AD was prompted by reports of cracks in the high-pressure compressor (HPC) rotor shaft that resulted in in-flight shutdowns (IFSDs) and unscheduled engine removals (UERs). This AD requires removal and replacement of the HPC front hub and HPC rotor shaft. The FAA is issuing this AD to address the unsafe condition on these products.