Airworthiness Directive · Amendment 39-15570 · Flight controls
Bombardier Model DHC-8-400 Series Airplanes
This AD applies to Bombardier Model DHC-8-400, DHC-8-401, and DHC-8-402 airplanes; certificated in any category; having serial numbers 4003 and subsequent.
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:
For airplanes having serial numbers 4003, 4004, 4006, and 4008 through 4159: unless already done, do the following actions.
(1) Within 5,000 flight hours after the effective date of this AD: Visually inspect both left and right elevator overload bungees, part number (P/N) FE289000000, to determine if they are correctly installed, in accordance with Bombardier Service Bulletin 84-27-30, Revision `C,' dated October 31, 2007. If any bungee is found installed incorrectly, remove the bungee and re-install it correctly before the next flight in accordance with the service bulletin.
(2) Within 5,000 flight hours after the effective date of this AD: Attach label, P/N FE289006200, to both left and right elevator overload bungees to show the correct orientation of the outboard end in accordance with Bombardier Service Bulletin 84-27-30, Revision `C,' dated October 31, 2007.
(3) Within 5,000 flight hours after the effective date of this AD: Re-identify the P/N to read “FE289000001” on the identification plate of both the left and right elevator overload bungees in accordance with Bombardier Service Bulletin 84-27-30, Revision `C,' dated October 31, 2007.
(4) Actions accomplished before the effective date of this AD in accordance with Bombardier Service Bulletin 84-27-27, dated May 24, 2005, are acceptable for compliance with the corresponding actions specified in paragraphs (f)(1), (f)(2), and (f)(3) of this AD.
(5) Actions accomplished before the effective date of this AD in accordance with Bombardier Service Bulletin 84-27-30, dated February 8, 2007; Revision `A,' dated March 2, 2007; or Revision `B,' dated May 3, 2007; are acceptable for compliance with the corresponding actions specified in this AD.
Note 1: Paragraphs (f)(2) and (f)(3) of this AD constitute Modsum 4-113537.
(g) For all airplanes: As of the effective date of this AD, no replacement/spare elevator overload bungees, P/N FE289000000, are permitted to be installed on any airplane. Only elevator overload bungees identified with new P/N “FE289000001” on the identification plate are permitted to be installed.
Note 2: This AD differs from the MCAI and/or service information as follows: No differences.
