Airworthiness Directive · Amendment 39-18565 · Flight controls
Bombardier, Inc. Airplanes
This AD applies to the Bombardier, Inc. airplanes, certificated in any category, identified in paragraphs (c)(1), (c)(2), and (c)(3) of this AD.
(1) Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, serial numbers 10002 through 10999 inclusive.
(2) Model CL-600-2D15 (Regional Jet Series 705) airplanes and Model CL-600-2D24 (Regional Jet Series 900) airplanes, serial numbers 15001 through 15990 inclusive.
(3) Model CL-600-2E25 (Regional Jet Series 1000) airplanes, serial numbers 19001 through 19990 inclusive.
We are superseding Airworthiness Directive (AD) 2016-08-05 for certain Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, Model CL-600-2D24 (Regional Jet Series 900) airplanes, and Model CL-600-2E25 (Regional Jet Series 1000) airplanes. AD 2016-08-05 required replacement of affected angle of attack (AOA) transducers. This new AD requires the same actions as AD 2016-08-05. This new AD was prompted by a report of a typographical error in the regulatory text of AD 2016-08-05. We are issuing this AD to 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 paragraph (g) of AD 2016-08-05, with no changes. Within 2,500 flight hours or 12 months, whichever occurs first after May 18, 2016 (the effective date of AD 2016-08-05), replace the AOA transducers identified in paragraph 1.A., “Effectivity,” of Bombardier Service Bulletin 670BA-27-069, dated March 30, 2015, with correctly calibrated AOA transducers, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 670BA-27-069, dated March 30, 2015.
This paragraph restates the parts installation prohibition specified in paragraph (h) of AD 2016-08-05, with a change to the affected parts language. As of May 18, 2016 (the effective date of AD 2016-08-05), 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 670BA-27-069, dated March 30, 2015.
