Airworthiness Directive · Amendment 39-16326 · Electrical power
Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) Airplanes, Model CL-600-2D15 (Regional Jet Series 705) Airplanes, and Model CL-600-2D24 (Regional Jet Series 900) Airplanes
This AD applies to Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, having serial numbers (S/Ns) 10004 and subsequent; and Model CL-600-2D15 (Regional Jet Series 705) airplanes and Model CL-600-2D24 (Regional Jet Series 900) airplanes, having S/N 15002 and subsequent; certificated in any category.
We are superseding an existing 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:
Unless already done, do the following actions.
(1) For airplanes identified in Table 1 of this AD: Within 12 months after April 30, 2009 (the effective date of AD 2009-06-18), inspect the serial number of the installed ADG. A review of airplane maintenance records is acceptable in lieu of this inspection if the serial number of the ADG can be conclusively determined from that review.
| Model | Serial No. |
|---|---|
| CL-600-2C10 airplanes | 10004 through 10265. |
| CL-600-2D15 and CL-600-2D24 airplanes | 15002 through 15162. |
(i) If the serial number is not listed in paragraph 1.A of Bombardier Service Bulletin 670BA-24-015, Revision A, dated December 18, 2006, no further action is required by this AD.
(ii) If the serial number is listed in paragraph 1.A of Bombardier Service Bulletin 670BA-24-015, Revision A, dated December 18, 2006 (“the service bulletin”), within 12 months after April 30, 2009, inspect the ADG identification plate and, as applicable, do the actions of paragraph (f)(1)(ii)(A) or (f)(1)(ii)(B) of this AD.
(A) If the identification plate is marked with the symbol “24-2,” no further action is required by this AD.
(B) If the identification plate is not marked with the symbol “24-2,” modify the ADG wiring in accordance with the Accomplishment Instructions of the service bulletin.
(2) For all Model CL-600-2C10 airplanes having S/N 10004 and subsequent, and Model CL-600-2D15 and CL-600-2D24 airplanes having S/N 15002 and subsequent: As of April 30, 2009, no ADG part number 604-90800-19 (761339E), having S/N 0101 through 0132, 0134 through 0167, 0169 through 0358, 0360 through 0438, 0440 through 0456, 0458 through 0467, 0469, 0471 through 0590, 0592 through 0597, 0599 through 0745, 0747 through 1005, or 1400 through 1439, may be installed on any airplane, unless the identification plate of the ADG is identified with the symbol “24-2.”
Note 1: Bombardier Service Bulletin 670BA-24-015, Revision A, dated December 18, 2006, refers to Hamilton Sundstrand Service Bulletin ERPS10AG-24-2, dated February 19, 2004, for further guidance on identifying the symbol “24-2.”
(3) Actions done before April 30, 2009, according to Bombardier Service Bulletin 670BA-24-015, dated May 17, 2004, are considered acceptable for compliance with the corresponding actions specified in paragraph (f)(1) of this AD, provided the ADG has not been replaced since those actions were done.
Unless already done, do the following actions.
(1) For airplanes identified in Table 2 of this AD: Within 12 months after the effective date of this AD, inspect the serial number of the installed ADG. A review of airplane maintenance records is acceptable in lieu of this inspection if the serial number of the ADG can be conclusively determined from that review.
| Model | Serial No. |
|---|---|
| CL-600-2C10 airplanes | 10266 through 10273 inclusive. |
| CL-600-2D15 and CL-600-2D24 airplanes | 15163 through 15223 inclusive. |
(i) If the serial number is not listed in paragraph 1.A of Bombardier Service Bulletin 670BA-24-015, Revision A, dated December 18, 2006, no further action is required by this AD.
(ii) If the serial number is listed in paragraph 1.A of Bombardier Service Bulletin 670BA-24-015, Revision A, dated December 18, 2006 (“the service bulletin”), within 12 months after the effective date of this AD, inspect the ADG identification plate and, as applicable, do the actions of paragraph (g)(1)(ii)(A) or (g)(1)(ii)(B) of this AD.
(A) If the identification plate is marked with the symbol “24-2”, no further action is required by this AD.
(B) If the identification plate is not marked with the symbol “24-2”, modify the ADG wiring in accordance with the Accomplishment Instructions of the service bulletin.
(2) Actions done before the effective date of this AD according to Bombardier Service Bulletin 670BA-24-015, dated May 17, 2004, are considered acceptable for compliance with the corresponding actions specified in paragraph (g)(1) of this AD, provided the ADG has not been replaced since those actions were done.
Note 2: This AD differs from the MCAI and/or service information as follows: The MCAI specifies to inspect Model CL-600-2C10 airplanes having S/Ns 10004 through 10265 inclusive and Model CL-600-2D15 and CL-600-2D24 airplanes having S/Ns 15002 through 15162 inclusive. This AD also specifies to inspect Model CL-600-2C10 airplanes having S/Ns 10266 through 10273, and Model CL-600-2D15 and CL-600-2D24 airplanes having S/Ns 15163 through 15223 inclusive.
