Airworthiness Directives; Various Model 234 and Model CH-47D Helicopters
airworthiness · Rule · Final rule. · Published 2018-08-13 · Effective 2018-09-17 · 83 FR 39874
Document
Document number
2018-17112
Federal Register citation
83 FR 39874
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Various Model 234 and Model CH-47D
Publication date
2018-08-13
Effective date
2018-09-17
FAA docket
Docket No. FAA-2015-4007
Abstract
We are adopting a new airworthiness directive (AD) for various Model 234 and Model CH-47D helicopters. This AD requires inspections of the pitch housing and revising the pitch housing retirement life. This AD was prompted by reports of cracking in the pitch housing lugs. The actions of this AD are intended to detect and prevent an unsafe condition on these products.