Airworthiness Directive · Amendment 39-16437 · Electrical power
Bombardier, Inc. Model CL-600-2B16 (CL-604 Variants (Including CL-605 Marketing Variant)) Airplanes
This AD applies to Bombardier, Inc. Model CL-600-2B16 (CL-604 Variant) airplanes; certificated in any category; serial numbers (S/N) 5408 and subsequent.
Note 1: Some Model CL-600-2B16 (CL-604 Variant) airplanes might be referred to by a marketing designation of CL-605.
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.
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 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.
(1) Within 400 flight hours or 12 months after the effective date of this AD, whichever occurs first, or
(2) Prior to the next in-flight or on-ground functional test 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 test of the ADG, whichever occurs first after the effective date of this AD, or
(4) Prior to the next scheduled ADG in-flight deployment.
(h) If the ADG serial number, as determined in paragraph (g) of this AD, is not listed in paragraph 1.A of the applicable Bombardier service bulletin listed in Table 1 of this AD, no further action is required by this AD, except as required by paragraph (j) of this AD.
| Model— | Bombardier Service Bulletin— | Dated— |
|---|---|---|
| CL-600-2B16 (CL-604) airplanes | 604-24-021 | July 13, 2009. |
| CL-600-2B16 (CL-605) airplanes | 605-24-001 | July 13, 2009. |
(i) If the ADG serial number determined in paragraph (g) of this AD is identified in paragraph 1.A. of the applicable service bulletin listed in Table 1 of this AD, before further flight, 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” can be conclusively determined from that review.
(1) If the symbol “24-5” is marked on the ADG identification plate, and the balance washer screws have already been replaced, no further action is required by this AD, except as required by paragraph (j) of this AD.
(2) If the symbol “24-5” is not marked on the ADG identification plate, before further flight, replace all balance washer screws with new screws having 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 listed in Table 1 of this AD, unless the ADG is identified with the symbol “24-5” on the identification plate.
Note 2: 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 difference with TCCA.
