airworthiness · Rule · Final rule. · Published 2019-08-27 · Effective 2019-10-01 · 84 FR 44681
Document
Document number
2019-18339
Federal Register citation
84 FR 44681
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Pratt & Whitney Turbofan
Publication date
2019-08-27
Effective date
2019-10-01
FAA docket
Docket No. FAA-2019-0365
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Pratt & Whitney (PW) PW1519G, PW1521G, PW1521GA, PW1524G, PW1525G, PW1521G-3, PW1524G-3, PW1525G-3, PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A model turbofan engines. This AD was prompted by corrosion found on the high-pressure compressor (HPC) front hub, which could result in certain HPC front hubs cracking before reaching their published life limit. This AD requires revisions to the Airworthiness Limitations Section (ALS) of the manufacturer's Instructions for Continued Airworthiness (ICA) and air carrier's approved Continued Airworthiness Maintenance Programs (CAMP) to incorporate new or more restrictive airworthiness limitations. The FAA is issuing this AD to address the unsafe condition on these products.