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J400
Service bulletin STSB-001 Seat Belt pertains primarily to two seat types. To download the service bulletin, click here. Service bulletin STSB-002 Minimum Fuel Wet Wings pertains primarily to J400 and J430 types. To download the service bulletin, click here. We have recently encountered issues concerning the fuel systems of J400's (serial no up to 163), and are concerned that users might suffer likewise. We therefore strongly recommend the installation of sump fuel tanks which provide a fuel buffer as well as a fuel system vent. These will be supplied free of charge for J400 kits already supplied in the UK. Future kits will be supplied with the sumps as an integral part of the kit. Early aircraft have been provided with a 'Shark's fin' venting system for the fuel tanks and it is proposed to retain this system for these aircraft. Prior to this modification being implemented, all take off's and landings and any flight less than 1000 feet AGL must be carried out with both fuel taps open. Furthermore, all flights must ensure a minimum quantity of fuel of 40 litres at all times in each tank. Finally, fuel management must be carried out using measured quantity on the ground and calculated from fuel consumed (ie like a C172 etc). The fuel flow to the engine runs through the sight gauges which means that the pressure drop caused by the flow can give a false reading. As such, the indicators will only give a true reading when the aircraft is on the ground with the engine stopped. Jubilee clips Check all. I left my Carby Jubilee clips undone which could let the Carby drop off!
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