Airworthiness Directive · Amendment 39-18238 · Flight controls
Bombardier, Inc. Airplanes
This AD applies to Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 airplanes, certificated in any category, having serial numbers 9002 through 9520 inclusive and 9998.
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 airplanes. This AD was prompted by a report of several events where pilots experienced difficulty in lateral control of the airplane after doing a climb through heavy rain conditions and a determination that the cause was water ingress in the aileron control pulley assembly. This AD requires, for certain airplanes, inspecting for correct clearance and rework if necessary, and, for certain other airplanes, installing a cover for the aileron pulley assembly. We are issuing this AD to prevent water ingress in the aileron control pulley assembly, which could freeze in cold conditions and result in reduced control of the airplane.
Except as provided by paragraph (j) of this AD, for airplanes on which a cover for the No. 1 aileron pulley has not been installed as of the effective date of this AD: Within 150 flight cycles after the effective date of this AD, install a cover for the No. 1 aileron pulley, including doing a general visual inspection for correct clearance and rework as applicable, in accordance with paragraph C., “PART B—Modification,” of the Accomplishment Instructions of the applicable service bulletins identified in paragraphs (g)(1) and (g)(2) for this AD.
(1) For Model BD-700-1A10 airplanes: Bombardier Service Bulletin 700-27-076, Revision 04, dated September 4, 2014; or 700-27-6004, Revision 04, dated September 4, 2014.
(2) For Model BD-700-1A11 airplanes: Bombardier Service Bulletin 700-1A11-27-034, Revision 04, dated September 4, 2014; or 700-27-5004, Revision 04, dated September 4, 2014.
Except as provided by paragraph (j) of this AD, for airplanes on which a cover for the No. 1 aileron pulley has been incorporated using the applicable service information identified in paragraphs (h)(1) and (h)(2) of this AD as of the effective date of this AD: Within 150 flight cycles after the effective date of this AD, do a general visual inspection for correct clearance and, before further flight, rework, as applicable, in accordance with paragraph B., “PART A—Inspection and Rework,” of the Accomplishment Instructions of the applicable service information identified in paragraphs (g)(1) and (g)(2) of this AD.
(1) For Model BD-700-1A10 airplanes: Bombardier Service Bulletin 700-27-076, dated March 5, 2012; or 700-27-6004, dated March 5, 2012.
(2) For Model BD-700-1A11 airplanes: Bombardier Service Bulletin 700-1A11-27-034, dated March 5, 2012; or 700-27-5004, dated March 5, 2012.
Except as provided by paragraph (j) of this AD, for airplanes on which the Service Non-Incorporated Engineering Orders (SNIEO) or Service Requests for Product Support Action (SRPSA) that are listed in table 2 of paragraph 1.A., “Effectivity,” in the applicable service information identified in paragraphs (i)(1), (i)(2), and (i)(3) of this AD have been incorporated: Within 150 flight cycles from the effective date of this AD, do the re-identification of the overwing panels, in accordance with paragraph 2.B(2)(g) of the Accomplishment Instructions of the applicable service information identified in paragraphs (g)(1) and (g)(2) of this AD.
(1) Bombardier Service Bulletin 700-27-076, Revision 04, dated September 4, 2014.
(2) Bombardier Service Bulletin 700-27-6004, Revision 04, dated September 4, 2014.
(3) Bombardier Service Bulletin 700-1A11-27-034, Revision 04, dated September 4, 2014.
Airplanes on which the applicable SRPSA, as identified in table 1 of paragraph 1.A., “Effectivity,” in the applicable service information identified in paragraph (j)(1), (j)(2), or (j)(3) of this AD has been accomplished as of the effective date of this AD, meet the intent of paragraphs (g), (h), and (i) of this AD, and no further action is required.
(1) Bombardier Service Bulletin 700-27-076, Revision 04, dated September 4, 2014.
(2) Bombardier Service Bulletin 700-27-6004, Revision 04, dated September 4, 2014.
(3) Bombardier Service Bulletin 700-1A11-27-034, Revision 04, dated September 4, 2014.
