airworthiness · Rule · Final rule. · Published 2018-10-29 · Effective 2018-12-03 · 83 FR 54229
Document
Document number
2018-23526
Federal Register citation
83 FR 54229
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Pratt & Whitney Turbofan
Publication date
2018-10-29
Effective date
2018-12-03
FAA docket
Docket No. FAA-2017-1206
Abstract
We are adopting a new airworthiness directive (AD) for all Pratt & Whitney (PW) PW2037, PW2037M, and PW2040 turbofan engines. This AD was prompted by an uncommanded high thrust event that occurred during approach on January 16, 2016, and during landing on April 6, 2016. This AD requires removal of the metering valve pilot valve (MVPV) within certain fuel control units (FCUs) and the MVPV's replacement with a part eligible for installation. We are issuing this AD to address the unsafe condition on these products.