BOMBARDIER
BOMBARDIER DHC-8-400 series airplanes [Docket No. FAA-2011-1090; Directorate Identifier 2011-NM-138-AD] – This proposed AD would require operators to incorporate ModSum 4-126513, Seal System Shut Off Valve Control Logic Change, per the instructions of Bombardier Service Bulletin 84-52-69, Rev. C...
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