Airworthiness directives › 2021-23-14
AD 2021-23-14 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, serial numbers 20003 and subsequent.
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: Revise the Emergency Procedures and Non-Normal Procedures sections of the existing AFM to include the information in Section 03-19, Electrical, of Chapter 03, Emergency Procedures, and Section 05-19, Electrical, of Chapter 05, Non-Normal Procedures, of the Bombardier Challenger 300 (Imperial Version) Airplane Flight Manual, Publication No. CSP 100-1, Revision 63, dated April 1, 2021 (for airplanes having serial numbers 20003 through 20500 inclusive); or Bombardier Challenger 350 Airplane Flight Manual, Publication No. CH 350 AFM, Revision 29, dated April 1, 2021 (for airplanes having serial numbers 20501 through 20999 inclusive); as applicable. Note 1 to paragraph (g): For obtaining the sections for Bombardier Challenger 300 (Imperial Version) Airplane Flight Manual, Publication No. CSP 100-1, use Document Identification No. CH 300 AFM-I.
Unsafe condition
This AD was prompted by 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 erroneous indications that could mislead pilots, causing them to turn off active electrical power sources, leading to partial or complete loss of electrical power. Loss of electrical power could result in the 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