Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes
airworthiness · Rule · Final rule. · Published 2021-03-22 · Effective 2021-04-26 · 86 FR 15089
Document
Document number
2021-05583
Federal Register citation
86 FR 15089
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series
Publication date
2021-03-22
Effective date
2021-04-26
FAA docket
Docket No. FAA-2020-0971
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500- 1A11 airplanes. This AD was prompted by a report that threaded fuel couplings were incorrectly installed at final assembly and in service. This AD requires repetitive functional tests of the auxiliary power unit (APU) fuel feed line shroud, a general visual inspection of the APU fuel feed line shroud for any loose couplings; and tightening any loose couplings, which would terminate the repetitive functional tests. The FAA is issuing this AD to address the unsafe condition on these products.