CSP−900RMM−2MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 601
Revision 34
28-00-00
FUEL SYSTEM
INSPECTION / TEST
1. General Inspections for the Fuel Cell
A. Fuel Cell Inspection − Fuselage Bottom
(1). Examine the gravity fill port filler neck:
(a). Examine cap for missing or damaged
seal.
(b). Remove the filler cap.
(c). Operate the fuel/defuel valve.
(d). Make sure the operation of fuel/de
fuel valve is correct.
(e). Examine lanyard for security.
(2). Examine the fuel vent fairings for
damage.
(a). Examine the fuel vent fairings for air
flow blockage.
(b). Repair or replace as required.
(3). Remove Access Panel B178 (ref. Section
06-00-00).
(a). Examine the exterior of fuselage
beneath the fuel cell for indications of
fuel leakage.
(b). No leaks permitted.
(c). Repair or replace components as
required.
(4). Examine the installation of the fuel
booster pump.
(a). Repair or replace components as
necessary.
(5). Examine the fuel booster pump electri
cal leads for condition and connectors
for corrosion and installation.
(a). Repair or replace components as
necessary.
(6). Examine the fuel quantity probe
electrical connector for serviceable
condition, bent or broken pins, frayed or
broken wires.
(a). Repair or replace components as
necessary.
(7). Open Access Panel R185 (ref. Section
06-00-00).
(8). Do a check of the drain valve control
cable for correct operation and freedom
of movement.
(9). Examine the sump drain valves for
leakage.
(a). No leakage of fuel from the sump
drain valves is permitted for 5
minutes after the controls have been
released.
(10). Examine the installation of the drain
valve control cable clamps.
(a). Repair or replace components as
necessary.
(11). Close Access Panel R185 (ref. Section
06-00-00).
(12). Install Access Panel B178 (ref. Section
06-00-00).
B. Fuel Cell Inspection − Fuselage Cavity
NOTE: There is no definite minimum or maxi
mum service life of the fuel cell. The best in
surance for trouble-free service is the prop
er installation of the cell. Do periodic
inspections to find indications of fuel vent
system failure or leakage.
Aviation Turbine Fuel
Do the Fuel Cell Leak Check/Pressure
Test to find leaks in the fuel system. If the
pressure test does not find leakage, a
visual inspection is not required.
Do a fuel cell cavity visual inspection
when floor panels are removed for other
maintenance.
(1). Defuel the rotorcraft (ref. Section
12-00-00).
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