Airworthiness Directive · Amendment 39-19633 · Flight controls
Viking Air Limited (Type Certificate Previously Held by Bombardier, Inc.; Canadair Limited) Airplanes
This AD applies to Viking Air Limited (Type Certificate previously held by Bombardier, Inc.; Canadair Limited) airplanes, certificated in any category, as identified in paragraphs (c)(1) and (c)(2) of this AD.
(1) Model CL-215-6B11 (CL-215T Variant) airplanes, serial numbers 1085, 1086, 1093, 1094, and 1098 through 1101 inclusive.
(2) Model CL-215-6B11 (CL-415 Variant) airplanes, serial numbers 2076 through 2090 inclusive.
We are adopting a new airworthiness directive (AD) for certain Viking Air Limited Model CL-215-6B11 (CL-215T Variant) and CL-215-6B11 (CL-415 Variant) airplanes. This AD was prompted by a report that a supplier fabricated Teflon parts with a charge of 15 percent fiberglass content instead of the specified 5 percent fiberglass content. This AD requires repetitive detailed visual inspections of the aileron control system cables and flap interconnect system cables for damage or disconnected cables, corrective actions if necessary, and replacement of the Teflon parts in the aileron control systems, aileron/rudder interconnect, and aileron power unit beam. The replacement of these parts terminates the repetitive inspections. We are issuing this AD to address the unsafe condition on these products.
Within 50 flight hours after the effective date of this AD: Accomplish a detailed visual inspection of the aileron control systems cables and flap interconnect system cables for disconnected or damaged cables in accordance with paragraph 2.A. of the Accomplishment Instructions of Bombardier Service Bulletin 215-3185, Revision 1, dated January 28, 2014; or Bombardier Service Bulletin 215-4476, Revision 1, dated January 28, 2014; as applicable. Repeat the inspection thereafter at intervals not to exceed 50 flight hours.
If any disconnected or damaged (including broken wires, unusual wear, or fraying) cables are found during any inspection required by paragraph (g) of this AD: Before further flight, obtain corrective actions approved by the Manager, New York ACO Branch, FAA; or Transport Canada Civil Aviation (TCCA); or Viking Air Limited's TCCA Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. Accomplish the corrective actions within the compliance time specified therein. If no compliance time is specified in the corrective actions instructions, accomplish the corrective action before further flight.
Within 29 months after the effective date of this AD: Replace the Teflon parts in the aileron control system, the aileron/rudder interconnect, and the aileron power unit beam in accordance with Parts A, B, and C of the Accomplishment Instructions of Bombardier Service Bulletin 215-3186, Revision 3, dated September 29, 2015; or Bombardier Service Bulletin 215-4477, Revision 2, dated September 29, 2015.
Accomplishing the replacement required by paragraph (i) of this AD on an airplane constitutes terminating action for the inspections required by paragraph (g) of this AD for that airplane.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
