Airworthiness Directive · Amendment 39-18566 · Flight controls
Bombardier, Inc. Airplanes
This AD applies to Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, certificated in any category, serial numbers 7003 through 7067 inclusive, 7069 through 7990 inclusive, and 8000 through 8999 inclusive.
We are superseding Airworthiness Directive (AD) 2016-09-04 for certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. AD 2016-09-04 required replacement of incorrectly calibrated angle of attack (AOA) transducers. This new AD requires the same actions as AD 2016-09-04. This new AD was prompted by a report of a typographical error in the regulatory text of AD 2016-09-04. We are issuing this AD detect and replace incorrectly calibrated AOA transducers; incorrect calibration of the transducers could result in late activation of the stick pusher.
This paragraph restates the requirements of paragraph (g) of AD 2016-09-04, with no changes. For AOA transducers identified in paragraph 1.A., “Effectivity,” of Bombardier Service Bulletin 601R-27-164, dated March 30, 2015: Within 2,500 flight hours or 12 months, whichever occurs first after June 6, 2016 (the effective date of AD 2016-09-04), replace the AOA transducers with correctly calibrated AOA transducers, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 601R-27-164, dated March 30, 2015.
This paragraph restates the parts installation prohibition specified in paragraph (h) of AD 2016-09-04, with a change to the affected parts language. As of June 6, 2016 (the effective date of AD 2016-09-04), no person may install, on any airplane, an AOA transducer having a part number and serial number listed in paragraph 1.A., “Effectivity,” of Bombardier Service Bulletin 601R-27-164, dated March 30, 2015.
