Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
airworthiness · Rule · Final rule. · Published 2021-11-01 · Effective 2021-12-06 · 86 FR 60162
Document
Document number
2021-23656
Federal Register citation
86 FR 60162
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
De Havilland
Publication date
2021-11-01
Effective date
2021-12-06
FAA docket
Docket No. FAA-2021-0613
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain De Havilland Aircraft of Canada Limited Model DHC-8-400, -401, and -402 airplanes. This AD was prompted by a report of cracking found on a main landing gear (MLG) drag strut assembly. This AD requires a records review to determine if an affected MLG drag strut assembly is installed, repetitive detailed inspections for cracking of affected strut assemblies, a one-time magnetic particle inspection for cracking, and on-condition actions if necessary. The FAA is issuing this AD to address the unsafe condition on these products.