7.3.1 Tanks containing fuel and other flammable
fluids should be separated from passenger, crew and baggage compartments
by vapour-proof enclosures or cofferdams which are suitably ventilated
and drained.
7.3.2 Wherever possible, such tanks should not
be located in, or contiguous to, fire hazard areas, but where they
are so located they should be made of steel or other equivalent material.
7.3.3 Means should be provided to shut off the
flow of flammable fluids into a fire hazard area. This means, and
the control thereof, should be located outside the fire hazard area.
The quantity of oil remaining in pipes, filter, etc., in such areas
should be kept to a minimum.
7.3.4 Pipes, valves and couplings conveying flammable
fluids should be of steel or such alternative material satisfactory
to the Administration in respect of strength and fire integrity having
regard to the service pressure and the spaces in which they are installed.
Wherever practicable, the use of flexible pipes should be avoided
but where such piping is used, it should be approved by the Administration.
7.3.5 Pipes, valves and couplings conveying flammable
fluids should be arranged as far from hot surfaces or air intakes
of engine installations, electrical appliances and other potential
sources of ignition as is practicable and be located or shielded so
that the likelihood of fluid leakage coming into contact with such
sources of ignition is kept to a minimum.