Airworthiness directives › 2026-15-09
AD 2026-15-09 Airworthiness Directives; Bombardier, Inc., Airplanes
Models named: BD-700-1A10, BD-700-1A11. 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 and BD-700-1A11 airplanes, certificated in any category, as identified in Transport Canada AD CF-2022-53, dated September 8, 2022 (Transport Canada AD CF-2022-53).
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Transport Canada AD CF-2022-53.
Unsafe condition
This AD was prompted by an in-service event where a main landing gear tire burst upon landing. The investigation into the event found that with the loss of a 5V power supply in the brake control unit (BCU) wheel control card, a residual current may build within the brake control valve (BCV) driver circuit. This residual current may result in uncommanded brake pressure during landing. The unsafe condition, if not addressed, could result in one or more tires to burst due to a dragging brake or a locked brake, unexpected deceleration, degraded braking performance, directional difficulties, or brake(s) overheating.
Affected ADs
None.
Read the original on the Federal Register →
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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