Airworthiness directives › 2021-03-17
AD 2021-03-17 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, serial numbers 9002, 9003, 9011, 9016, 9020, 9022 through 9025 inclusive, 9029, 9031, 9032, 9036, 9039 through 9044 inclusive, 9046 through 9058 inclusive, 9060 through 9065 inclusive, 9067 through 9081 inclusive, 9083 through 9106 inclusive, 9108 through 9122 inclusive, 9124 through 9126 inclusive, 9128, 9129, 9133, 9134, 9136 through 9139 inclusive, 9141 through 9148 inclusive, 9150, 9151, 9153, 9159, 9162, 9163, 9165, and 9169.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 15 months after the effective date of this AD, inspect the ELB to determine the last replacement date or the manufacturing date, as applicable; if during this inspection, any date is found to be 4 years or older, replace the ELB before further flight. Do the actions in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 700-33-024, dated May 13, 2019. For airplanes on which the restoration task specified in paragraph (h) of this AD was done before the effective date of this AD, the requirements of paragraph (g) of this AD are not required.
Unsafe condition
This AD was prompted by a report of smoke and signs of an overheating condition from the emergency light battery (ELB) due to excessive corrosion surrounding the internal lead acid batteries, which caused an electrical short circuit that led to the smoke and overheating condition. The FAA is issuing this AD to address such conditions, which could cause fire onboard 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