Airworthiness directives › 2015-17-05
AD 2015-17-05 Airworthiness Directives; Bombardier, Inc. Airplanes
Models named: BD-700-1A10, BD-700-1A11. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
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.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
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.
Unsafe condition
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. 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.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1