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Airworthiness directives › 2017-08-04

AD 2017-08-04 Airworthiness Directives; Bombardier, Inc. Airplanes

2017-05-17
2017-04-12
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Airframe
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Applicability*9

This AD applies to all Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, certificated in any category, all manufacturer serial numbers.

Compliance

Comply with this AD within the compliance times specified, unless already done.

Required actions

This paragraph restates the requirements of paragraph (g) of AD 2015-03-01, with revised service information. Within 6,000 flight hours after March 17, 2015 (the effective date of AD 2015-03-01): Install attaching hardware on the left and right engine fan cowl access panels and the nacelle attaching structures, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 601R-71-034, Revision B, dated August 1, 2014; or Bombardier Service Bulletin, 601R-71-034, Revision D, dated October 7, 2016. As of the effective date of this AD, only Bombardier Service Bulletin, 601R-71-034, Revision D, dated October 7, 2016, may be used.

Unsafe condition

This AD was prompted by dislodged engine fan cowl access panels. We are issuing this AD to prevent damage to the fuselage and flight control surfaces from dislodged engine fan cowl panels, and prevent incorrect weight and balance calculations. Incorrect weight and balance calculations may shift the center of gravity beyond approved design parameters and affect in-flight control, which could endanger passengers and crew.

Affected ADs

This AD replaces AD 2015-03-01, Amendment 39-18097 (80 FR 7298, February 10, 2015) (“AD 2015-03-01”).

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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