Airworthiness Directives; Bombardier, Inc., Airplanes
Key claim: The FAA is requiring operators of certain Bombardier BD-700-2A12 airplanes to correct tight clearances in the right wing among a fuel-line coupling, hydraulic system, harness bracket, and fuel vent tube to address an unsafe condition.
Abstract
(Rule · Transportation Department, Federal Aviation Administration) The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-2A12 airplanes. This AD was prompted by reports of low clearance in the right wing between the fuel line flexible coupling and the harness support bracket clip-nut, between the fuel line flexible coupling and hydraulic system, and between the hydraulic system and fuel vent tube. This AD requires rectifying the low clearance condition between the fuel line flexible coupling and the harness support bracket clip-nut, rectifying the low clearance condition between the fuel line flexible coupling and the hydraulic system, and doing an inspection for adequate clearance between the hydraulic system and the fuel vent tube and applicable on-conditions actions. The FAA is issuing this AD to address the unsafe condition on these products.
Why this matters
Tight clearances between a fuel-line coupling and adjacent hydraulic and structural components can cause chafing, fuel leaks, and fire risk on business jets. This AD adds to a running series of Bombardier BD-700-2A12 directives addressing fuel-system integrity on the Global 7500/8000 family. The practical effect is a mandatory clearance correction on specified aircraft before continued operation.