Airworthiness Directive · Amendment 39-14880 · Bombardier Model DHC-8-400 Series Airplanes
Bombardier Model DHC-8-400 Series Airplanes
This AD applies to Bombardier Model DHC-8-400 series airplanes, certificated in any category; having serial numbers 4003, 4004, 4006, 4008 through 4064 inclusive, 4072, and 4073.
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier Model DHC-8-400 series airplanes. This AD requires inspecting for fouling and chafing damage of the outboard brake control cable of the main landing gear, replacing the control cable if necessary, reworking the control cable cover, and, if applicable, manufacturing/installing an offset plate on the control cable cover. This AD results from a review of brake control cable operation conducted by the manufacturer. We are issuing this AD to prevent abrasion and wear of the outboard brake control cable, which could lead to cable separation and reduced control of airplane braking.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 12 months after the effective date of this AD, perform a general visual inspection for fouling and chafing damage of the outboard brake control cable of the main landing gear, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84-53-37, Revision ‘C,’ dated December 5, 2005.
Note 1: For the purposes of this AD, a general visual inspection is: “A visual examination of an interior or exterior area, installation, or assembly to detect obvious damage, failure, or irregularity. This level of inspection is made from within touching distance unless otherwise specified. A mirror may be necessary to ensure visual access to all surfaces in the inspection area. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight, or droplight and may require removal or opening of access panels or doors. Stands, ladders, or platforms may be required to gain proximity to the area being checked.”
If no fouling or damage is found during the inspection required by paragraph (f) of this AD: Within 24 months after the accomplishment date of the inspection, rework the control cable cover and, as applicable, manufacture/install the offset plate assembly; in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84-53-37, Revision ‘C,’ dated December 5, 2005.
If any fouling or damage is found during the inspection required by paragraph (f) of this AD: Before further flight, replace the control cable with a new control cable, rework the control cable cover and, if not already installed, manufacture/install the offset plate assembly; in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84-53-37, Revision ‘C,’ dated December 5, 2005.
(i) Actions accomplished before the effective date of this AD in accordance with Bombardier Service Bulletin 84-53-37, Revision ‘A,’ dated October 17, 2005; or Revision ‘B,’ dated November 24, 2005; are considered acceptable for compliance with the corresponding actions specified in this AD.
