Airworthiness Directive · Amendment 39-16224 · Flight controls
Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes
This AD applies to Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, certificated in any category, serial numbers (S/Ns) 7003 and subsequent equipped with Thales angle of attack (AOA) transducers having part number (P/N) 45150340 or P/N C16258AA.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Do the following actions.
(1) Within 250 flight hours after the effective date of this AD, inspect to determine if the serial number of each AOA transducer having P/N 45150340 or P/N C16258AA is listed in paragraph 1.A. of Bombardier Alert Service Bulletin A601R-27-157, Revision A, dated January 18, 2010. A review of airplane maintenance records is acceptable in lieu of this inspection if the serial number of the AOA transducer can be conclusively determined from that review.
(i) If the serial number is not listed in paragraph 1.A. of Bombardier Alert Service Bulletin A601R-27-157, Revision A, dated January 18, 2010, no further action is required other than compliance with paragraph (g)(2) of this AD.
(ii) If the serial number is listed in paragraph 1.A. of Bombardier Alert Service Bulletin A601R-27-157, Revision A, dated January 18, 2010, and the serial number has the letter “C”, no further action is required other than compliance with paragraph (g)(2) of this AD.
(iii) If the serial number is listed in paragraph 1.A. of Bombardier Alert Service Bulletin A601R-27-157, Revision A, dated January 18, 2010, and the serial number does not have the letter “C”: Before further flight, replace the AOA transducer with an AOA transducer that is either outside the affected serial numbers identified in paragraph 1.A. of Bombardier Alert Service Bulletin A601R-27-157, Revision A, dated January 18, 2010, or that has the letter “C” after the serial number, in accordance with paragraph 2., Part C, of the Accomplishment Instructions of Bombardier Alert Service Bulletin A601R-27-157, Revision A, dated January 18, 2010.
(2) As of the effective date of this AD, do not install any replacement AOA transducer having P/N 45150340 or P/N C16258AA, having a serial number listed in paragraph 1.A. of Bombardier Alert Service Bulletin A601R-27-157, Revision A, dated January 18, 2010, on any airplane, unless the transducer has been inspected by the manufacturer and has the letter “C” after the serial number.
Note 1: This AD differs from the MCAI and/or service information as follows: No differences.
