airworthiness · Rule · Final rule. · Published 2023-02-28 · Effective 2023-04-04 · 88 FR 12557
Document
Document number
2023-04026
Federal Register citation
88 FR 12557
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2023-02-28
Effective date
2023-04-04
FAA docket
Docket No. FAA-2022-1480
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-100-1A10 airplanes. This AD was prompted by reports of cracks found in the tailcone upper firewall where the auxiliary power unit (APU) muffler electrical bonding strap is attached. This AD requires a detailed visual inspection of the tailcone upper firewall for defects, rework by replacement of the APU electrical bonding strap, and repair if necessary. The FAA is issuing this AD to address the unsafe condition on these products.