Airworthiness directives › 2008-15-02
AD 2008-15-02 Airworthiness Directives; Eurocopter Deutschland GMBH Model MBB-BK 117C-2 Helicopters
Models named: MBB-BK 117C-2. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Model MBB-BK 117C-2 helicopters, Serial Number (S/N) 9004 through S/N 9104, and S/N 9106, 9107, and 9111, with a fire extinguishing system B26K1002-801, B262K1003-801, or B262K1004-801, installed, certificated in any category. Reason (d) The mandatory continuing airworthiness information (MCAI) states: During inadvertent operation of the fire extinguishing system, in one case it occurred that one of the two injection tubes became disconnected. This condition, if not corrected, could affect the ability of the fire extinguishing system to perform its intended function in the case of activation. The inability of the fire extinguishing system to suppress an engine fire creates an unsafe condition. The proposed actions are intended to address this unsafe condition by further securing the injection tubes with improved clamps, allowing suppression of a contained engine fire, and preventing an uncontained engine fire and subsequent loss of the helicopter.
Compliance
At the next 100 hours time-in-service inspection, unless already done, replace the current injection tube clamps by installing GBS clamps, part number GBSM24/18W4SK, by following the Accomplishment Instructions, paragraph A., and Figure 1 of Eurocopter Alert Service Bulletin MBB BK117 C-2-26A-001, dated January 22, 2007. Differences Between the FAA AD and the MCAI (f) The FAA refers to the compliance time by hours time-in-service rather than flight hours as referred to in the MCAI.
Required actions
At the next 100 hours time-in-service inspection, unless already done, replace the current injection tube clamps by installing GBS clamps, part number GBSM24/18W4SK, by following the Accomplishment Instructions, paragraph A., and Figure 1 of Eurocopter Alert Service Bulletin MBB BK117 C-2-26A-001, dated January 22, 2007. Differences Between the FAA AD and the MCAI (f) The FAA refers to the compliance time by hours time-in-service rather than flight hours as referred to in the MCAI.
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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