Airworthiness Directive · Amendment 39-18853 · Powerplant
Bombardier, Inc. Airplanes
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.
We are superseding Airworthiness Directive (AD) 2015-03-01, for all Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. AD 2015-03-01 required installing additional attaching hardware on the left and right engine fan cowl access panels and the nacelle attaching structures. This new AD requires weight and balance data to be included in the Weight and Balance Manual for certain modified airplanes. This new AD also requires the weight and balance data to be used in order to calculate the center of gravity for affected airplanes. This AD was prompted by updates to the weight and balance data needed to calculate the center of gravity for affected airplanes. We are issuing this AD to address the unsafe condition on these products.
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.
Within 6,000 flight hours after the effective date of this AD, revise the applicable Weight and Balance Manual to include the weight and balance data specified in Bombardier Service Bulletin, 601R-71-034, Revision D, dated October 7, 2016.
