Fuel Distribution System:
There must be a shut-off valve on the feed line. In case of an emergency it must be
possible for the pilot to shut of the fuel flow.
In the return line a provision must be provided to cut off fuel flowing back to engine in
case of an engine fire (e.g. check valve).
Protection of the intake line to the fuel pump against vibration and other additional
forces is necessary.
Example for acceptable Fuel distribution system:
(For particular installation refer to the applicable Aircraft Maintenance Manual)
Fig. 01 - 11 Fuel circuit
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