airworthiness · Rule · Final rule. · Published 2022-12-27 · Effective 2023-01-31 · 87 FR 79235
Document
Document number
2022-28091
Federal Register citation
87 FR 79235
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Pratt & Whitney Turbofan
Publication date
2022-12-27
Effective date
2023-01-31
FAA docket
Docket No. FAA-2022-1306
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Pratt & Whitney (PW) PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-3, PW1525G, and PW1525G-3 model turbofan engines. This AD was prompted by an uncommanded dual engine shutdown upon landing, resulting in compromised braking capability due to the loss of engine power and hydraulic systems. This AD requires removal from service of certain electronic engine control (EEC) full authority digital engine control (FADEC) software versions and replacement with updated software. The FAA is issuing this AD to address the unsafe condition on these products.