7.4 Fuel quality control ................................................................................................................................................ 47
7.4.1 General responsibilities & guidelines....................................................................................................................47
7.4.2 Aircraft fuel system sampling guidelines..............................................................................................................48
7.4.3 Bulk fuel guidelines...................................................................................................................................................48
7.4.4 Drummed fuel guidelines........................................................................................................................................49
7.5 Rapid refuelling (refuelling with engines running)........................................................................................ 49
7.5.1 Approvals & procedures...........................................................................................................................................49
7.5.2 Guidelines.................................................................................................................................................................... 50
7.6 Portable offshore fuel transport tanks ................................................................................................................50
7.6.1 Recommended minimum maintenance............................................................................................................... 50
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7 Fuel system design & management
7.1 Design, operation & inspection references
The following should be used as the basic reference documents for airbase fuelling system design/ inspection/operational considerations, and construction or major rework of existing airbases where no local guidance exists.
a) National Fire Protection Association (NFPA) NFPA 407.
b) UK CAP 437 (for helidecks).
7.2 Design & periodic review
In all cases, a review by an OGP Member’s Aviation Advisor should be incorporated into all prelimi-nary and critical design processes for Company airbase refuelling system construction or modifica-tion.
All fuel and supporting fire suppression systems, including those provided by airports or fixed base operators should have annual safety, technical and quality assurance reviews by appropriate regula-tory authority or an OGP Member’s Aviation Advisor and reviews every six months by the Operator. Records of such reviews and any remedial actions taken should be maintained.
7.3 Variances
Any variation to the above references should be forwarded to the OGP Member’s Aviation Advisor for considerations as early as possible.
7.4 Fuel quality control
7.4.1 General responsibilities & guidelines
It is essential that the Operator prepares formal procedures detailing all necessary equipment checks and fuel system quality control.
The ultimate responsibility for the quality of fuel loaded onto an aircraft is the Captain of the air-craft.
All fuel delivery systems, including portable systems, will be fitted with filtration of the water block-ing (Go-No-Go) type meeting the specifications of API 1583, which locks fuel flow when water is present.
Fuel filter canisters should be clearly marked with the next date of change or inspection cycle, and data recorded in an appropriate inspection record.
All filters should be replaced at nominated pressure differentials as annotated on the filter housing or as recommended by the manufacturer, but as a minimum will be replaced annually.
All fuel storage supplies, including drums, should be allowed to settle 1 hour for each 1 foot of fuel depth after the tanks have been resupplied or barrels moved to vertical, before samples are taken and fuel is approved for use. Fuel tanks should have a sign placed on the tank during settling, indicating the time at which the tank can be used (settling is complete). If the fuel system is serviced by only one tank, the fuel dispensing unit will also have a sign with wording as noted for the bulk tank.
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