Airworthiness directives › 2016-05-09
AD 2016-05-09 Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters
Applicability*9
This AD becomes effective April 15, 2016.
Compliance
(1) The Manager, Los Angeles Aircraft Certification Office, FAA, may approve AMOCs for this AD. Send your proposal to: Danny Nguyen, Aerospace Engineer Transport Airplane Directorate, FAA, 3960 Paramount Blvd., Lakewood, California 90712; telephone (562) 627-5247; email 9-ANM-LAACO-AMOC-REQUESTS@faa.gov. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office before operating any aircraft complying with this AD through an AMOC.
Required actions
Joint Aircraft Service Component (JASC) Code: 2840 Fuel Quantity Indicating System.
Unsafe condition
Within 100 hours time-in-service: (1) Remove the fuel quantity sensor by following the Accomplishment Instructions, paragraph 2.B., of MD Helicopters Service Bulletin SB369H-255, SB369E-111, SB500N-049, SB369D-213, or SB369F-098, dated April 30, 2014, as applicable to your model helicopter. Using a mirror and light, inspect the routing of the fuel pump wire in the area depicted in Figure 2 of MD Helicopters Service Bulletin SB369H-255, SB369E-111, SB500N-049, SB369D-213, or SB369F-098, dated April 30, 2014, as applicable to your model helicopter, and determine whether the fuel pump wire is wrapped around the left-hand fuel cell fuel inlet hose assembly a minimum of one revolution. (i) If the fuel pump wire is wrapped around the left-hand fuel cell fuel inlet hose a minimum of one revolution, install the fuel quantity sensor and perform a fuel quantity sensor functional test for proper fuel float arm function. (ii) If the fuel pump wire is not wrapped around the left-hand fuel cell fuel inlet hose a minimum of one revolution, install the fuel quantity sensor, route the fuel pump wire around the left-hand fuel cell fuel inlet hose by following paragraphs 2.E.(1) through 2.E.(8) of MD Helicopters Service Bulletin SB369H-255, SB369E-111, SB500N-049, SB369D-213, or SB369F-098, dated April 30, 2014 as applicable to your model helicopter, and perform a fuel quantity sensor functional test for proper fuel float arm function. (2) Install start pump warning decal, P/N MHS5861-66 or equivalent, on the left-hand fuel cell cover by following paragraph 2.G. of MD Helicopters Service Bulletin SB369H-255, SB369E-111, SB500N-049, SB369D-213, or SB369F-098, dated April 30, 2014 as applicable to your model helicopter.
Affected ADs
This AD defines the unsafe condition as incorrect routing of the auxiliary fuel pump (fuel pump) wiring. This condition could result in an erroneous fuel quantity indication in the cockpit and subsequent fuel exhaustion and emergency landing.
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