Airworthiness Directive · Amendment 39-16443 · Electrical power
Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes; Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) Airplanes; Model CL-600-2D15 (Regional Jet Series 705) and Model CL-600-2D24 (Regional Jet Series 900) Airplanes
This AD applies to Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, serial numbers 7305 through 7990 inclusive and 8000 and subsequent; Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, serial numbers 10003 and subsequent; Model CL-600-2D15 (Regional Jet Series 705) and Model CL-600-2D24 (Regional Jet Series 900) airplanes, serial numbers 15001 and subsequent; certificated in any category.
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.
For Model CL-600-2C10, CL-600-2D15 and CL-600-2D24 airplanes: At the earliest of the times identified in paragraphs (g)(1), (g)(2), (g)(3), and (g)(4) of this AD, do an inspection to determine the serial number of the installed air-driven generator (ADG), in accordance with the Accomplishment Instructions of the applicable service bulletin listed in Table 1 of this AD. A review of airplane maintenance records is acceptable in lieu of this inspection if the serial number of the ADG can be conclusively identified from that review.
(1) Within 4,000 flight hours or 18 months after the effective date of this AD, whichever occurs first; or
(2) Prior to the next in-flight or on-ground functional check of the ADG, whichever occurs first after the effective date of this AD; or
(3) Prior to the next in-flight or on-ground operational check of the ADG, whichever occurs first after the effective date of this AD; or
(4) Before the next scheduled ADG in-flight deployment.
(h) For Model CL-600-2B19 airplanes: At the earliest of the times identified in paragraphs (h)(1), (h)(2), (h)(3), and (h)(4) of this AD, do an inspection to determine the serial number of the installed ADG, in accordance with the Accomplishment Instructions of the applicable service bulletin listed in Table 1 of this AD. A review of airplane maintenance records is acceptable in lieu of this inspection if the part number of the ADG can be conclusively identified from that review.
(1) Within 4,000 flight hours after the effective date of this AD; or
(2) Prior to the next in-flight or on-ground functional check of the ADG, whichever occurs first after the effective date of this AD; or
(3) Prior to the next in-flight or on-ground operational check of the ADG, whichever occurs first after the effective date of this AD; or
(4) Before the next scheduled ADG in-flight deployment.
| Model— | Bombardier Service Bulletin— | Revision— | Dated— |
|---|---|---|---|
| CL-600-2B19 airplanes | 601R-24-127 | A | February 25, 2010. |
| CL-600-2C10, CL-600-2D15, and CL-600-2D24 airplanes | 670BA-24-026 | Original | October 23, 2009. |
(i) If the ADG serial number determined in paragraph (g) or (h) of this AD is identified in paragraph 1.A. of the applicable service bulletin listed in Table 1 of this AD, within the applicable time in paragraph (g) or (h) of this AD do an inspection to determine if the symbol “24-5” is marked on the ADG identification plate. A review of airplane maintenance records is acceptable in lieu of this inspection if the symbol “24-5” mark can be conclusively identified from that review.
(1) If the symbol “24-5” is marked on the ADG identification plate, the balance washer screws have already been replaced, and no further action is required by this paragraph.
(2) If the symbol “24-5” is not marked on the ADG identification plate, before further flight replace all balance washer screws with new balance washer screws, part number MS24667-14, and mark the ADG identification plate with symbol “24-5,” in accordance with the Accomplishment Instructions of the applicable service bulletin listed in Table 1 of this AD.
(j) As of the effective date of this AD, no person may install on any airplane, a replacement or spare ADG, Hamilton Sundstrand part number in the 761339 or 1711405 series, having one of the serial numbers identified in paragraph 1.A. of the applicable service bulletin identified in Table 1 of this AD, unless the ADG is identified with the symbol “24-5” on the identification plate.
Inspections accomplished before the effective date of this AD according to Bombardier Service Bulletin 601R-24-127, dated October 23, 2009, are considered acceptable for compliance with the corresponding action specified in this AD.
Note 1: This AD differs from the MCAI and/or service information as follows: The MCAI specifies to inspect only airplanes having certain serial numbers that are part of the MCAI applicability. Because the affected part could be rotated onto any of the airplanes listed in the applicability, this AD requires the inspection be done on all airplanes. We have coordinated this with the TCCA.
