Airworthiness directives › 2017-09-01
AD 2017-09-01 Airworthiness Directives; Bombardier, Inc., Airplanes
Applicability*9
This AD applies to Bombardier, Inc., Model CL-600-2E25 (Regional Jet Series 1000) airplanes, certificated in any category, as identified in Bombardier Service Bulletin 670BA-24-037, Revision A, dated July 11, 2016.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
At the applicable time specified in paragraph (g)(1) or (g)(2) of this AD: Do a detailed visual inspection for any cracks or signs of damage on each circuit breaker in the cockpit circuit breaker panels, and replace any cracked or damaged circuit breakers, in accordance with “Part A—Inspection and Replacement of the Damaged Cockpit Panel Circuit Breakers,” of the Accomplishment Instructions of Bombardier Service Bulletin 670BA-24-037, Revision A, dated July 11, 2016. Replace any cracked or damaged circuit breakers before further flight. (1) For airplanes that have accumulated less than 10,000 total flight hours as of the effective date of this AD: Before the accumulation of 12,600 total flight hours. (2) For airplanes that have accumulated 10,000 or more total flight hours as of the effective date of this AD: Within 2,000 flight hours after the effective date of this AD.
Unsafe condition
This AD was prompted by a report of cracks found in the plastic casing of cockpit circuit breaker panels. We are issuing this AD to detect and correct cracked circuit breaker casings, which could allow moisture ingress that could result in the malfunction of affected circuit breakers, and the potential loss of power to multiple airplane systems.
Affected ADs
None.
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