Airworthiness directives › 2024-16-18
AD 2024-16-18 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 (S/Ns) 20002 through 20912 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, revise the existing maintenance or inspection program, as applicable, to incorporate the information specified in paragraphs (g)(1) and (2) of this AD, as applicable. The initial compliance time for doing the tasks is at the time specified in the applicable time limit/maintenance check (TLMC) document specified in paragraphs (g)(1) and (2) of this AD, or within 60 days after the effective date of this AD, whichever occurs later. (1) For airplane S/Ns 20002 through 20500 inclusive: Task 54-51-00-111* “Discard of the Aft Engine Mount Bolts, Part No. MS21250-07, Non-Serialized,” Section 5-10-10 “Life Limits (Structures),” Part 2, “Airworthiness Limitations,” of the Bombardier Challenger 300 Time Limits/Maintenance Check, Publication No. CH 300 TLMC, Revision 24, dated August 9, 2023. (2) For airplane S/Ns 20501 through 20912 inclusive: Task 54-51-00-111* “Discard of the Aft Engine Mount Bolts, Part No. MS21250-07, Non-Serialized,” Section 5-10-10 “Life Limits (Structures),” Part 2 “Airworthiness Limitations,” of the Bombardier Challenger 350 Time Limits/Maintenance Check, Publication No. CH 350 TLMC, Revision 14, dated August 9, 2023. Note 1 to paragraph (g): The asterisk (or “one star”) with the last three digits of the task numbers listed in paragraphs (g)(1) and (2) of this AD indicates that the task is an airworthiness limitation task.
Unsafe condition
This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. The FAA is issuing this AD to address potential failures of the aft engine mount attachment bolt, part number MS21250-07. The unsafe condition, if not addressed, could lead to the detachment of the engine from the airplane, which could contribute to a catastrophic failure.
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