AD/BELL 412/18 - Engine Fuel Valve Electrical Connectors P/No MS3456W14S-5S
1AD/BELL 412/18 - Engine Fuel Valve Electrical Connectors P/No MS3456W14S-5S
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Bell Helicopter Textron 412 Series Helicopters
AD/BELL 412/18 Engine Fuel Valve Electrical Connectors
P/No MS3456W14S-5S
Applicability: Model 412 and 412NB S No 33001 to 33138 and S No 33150. Requirement: Action in accordance with Bell Alert SB 412-87-31.
Compliance: Prior to 1 March 1988.
1/88
Background: Field reports against some motor driven fuel valves indicate that with no prior warning the valve begins to oscillate between “open and closed”. The failure has been traced to an internal short circuit within the fuel valve connector P No MS3456W14S-5S manufactured by T.J. Electronics, and identified by the prefix TJE.