Airworthiness directives › 2025-16-07
AD 2025-16-07 Airworthiness Directives; Bombardier, Inc., Airplanes
Models named: BD-700-1A10. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Bombardier, Inc., Model BD-700-1A10 airplanes, certificated in any category, as identified in Bombardier Service Bulletin 700-35-016, dated June 12, 2024; Bombardier Service Bulletin 700-35-6006, dated June 12, 2024; and Bombardier Service Bulletin 700-35-6503, dated June 12, 2024.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 10 years after the effective date of this AD, do all the actions specified in paragraphs (g)(1) through (4) of this AD, and do all the applicable related investigative and corrective actions before further flight, in accordance with sections 2.B and 2.C of the Accomplishment Instructions of Bombardier Service Bulletin 700-35-016, Bombardier Service Bulletin 700-35-6006, and Bombardier Service Bulletin 700-35-6503, all dated June 12, 2024, as applicable. (1) Do a detailed inspection to determine the gap between the clocking angle of the therapeutic oxygen rigid tube to oxygen hose elbow fitting, if equipped, and the nearest electrical harness. (2) Do a detailed inspection of the therapeutic flexible oxygen hose, part number (P/N) 38911-5-0250, for damage and to determine if protection is installed on the hose. (3) Do a detailed inspection of the electrical harnesses surrounding the therapeutic flexible oxygen hose for damage. (4) Do a detailed inspection to determine the clearance between the electrical harnesses and therapeutic flexible oxygen hose.
Unsafe condition
This AD was prompted by a report indicating that the clearance between therapeutic flexible oxygen hoses and electrical harnesses may be non-compliant to design requirements, and that positive separation mechanisms and appropriate protective barriers may not have been installed in accordance with the applicable installation standards. The FAA is issuing this AD to prevent damage to the electrical harness for the therapeutic flexible oxygen hose and subsequent latent failure of the firewall hydraulic shutoff valve. The unsafe condition, if not addressed, could result in the inability to control a powerplant fire in the presence of a hydraulic fluid leak.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1