Airworthiness directives › 2023-11-01
AD 2023-11-01 Airworthiness Directives; Bombardier, Inc., Airplanes
Models named: BD-100-1A10. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Bombardier, Inc., Model BD-100-1A10 airplanes, certificated in any category, having serial numbers 20003 through 20795 inclusive, 20797 through 20812 inclusive, 20814 through 20832 inclusive, and 20834 through 20836 inclusive.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 60 days after the effective date of this AD, verify the total flight hours of the left-hand (LH) direct current power center (DCPC) unit since the date of manufacture by doing a records check in accordance with paragraph 2.B.(1) of the Accomplishment Instructions of the applicable service bulletin identified in paragraphs (g)(1) and (2) of this AD. (1) For airplanes having serial number 20001 through 20500 inclusive, use Bombardier Service Bulletin 100-24-29, dated April 9, 2021. (2) For airplanes having serial number 20501 through 20999 inclusive, use Bombardier Service Bulletin 350-24-004, dated April 9, 2021.
Unsafe condition
This AD was prompted by multiple reports of erratic electrical system status on the push button annunciators (PBAs) and the engine instrument and crew alerting system (EICAS) while on-ground and during flight. The FAA is issuing this AD to address erratic indications, which could cause the flight crew to turn off fully-operational electrical power sources, leading to partial or complete loss of electrical power. The unsafe condition, if not addressed, could result in loss of flight displays and reduced controllability of the airplane.
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