MD Helicopters MD Explorer - Fuel Cell Inspection - Internal

CSP−900RMM−2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 602
Revision 34
28-00-00
(2). Remove the cabin seats, if applicable
(ref. Section 25-20-00).
(3). Remove the carpet, if applicable (ref.
Section 25-20-00).
The rotorcraft must be defueled
before access panels AL155,
AR155, AL165, AR165, AL230, and AR230
are removed. Structural damage can occur if
these panels are removed with fuel in the ro
torcraft.
(4). Remove access panels AL155, AR155,
AL165, AR165, AL230, and AR230 (ref.
Section 53-20-00).
(5). Examine the vapor shroud hoses for
cracks, deterioration, deformation, and
security.
(a). No damage is permitted.
(6). Examine the installation of the drain
lines.
(a). Repair or replace components as
necessary.
(7). Inspect fuel filler neck for evidence of
fuel leakage.
(a). Replace seals as necessary.
(8). Install access panels AL155, AR155,
AL165, AR165, AL230, and AR230 (ref.
Section 53-20-00).
(9). Install the carpet, if applicable (ref.
Section 25-20-00).
(10). Install the cabin seats, if applicable
(ref. Section 25-20-00).
C. Fuel Cell Inspection − Internal
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
NOTE:
 Do a Fuel Cell Leak Check/Pressure Test
to find leaks in the fuel system. If the
pressure test does not indicate leakage, a
visual inspection is not necessary.
 Do a fuel cell internal visual inspection
when floor panels are removed for other
maintenance.
 If allowable serviceability criteria is ex
ceeded, contact MDHI Field Service De
partment for disposition.
(1). Defuel the helicopter (ref. Section
12-00-00).
(2). Remove the cabin seats, if applicable
(ref. Section 25-20-00).
(3). Remove the carpet, if applicable (ref.
Section 25-20-00).
The rotorcraft must be defueled
before access panels AL155,
AR155, AL165, AR165, AL230, and AR230
are removed. Structural damage can occur if
these panels are removed with fuel in the ro
torcraft.
(4). Remove access panels AL155, AR155,
A160, AL165, AR165, A170, A217,
AL230, and AR230 (ref. Section
53-20-00).
System Contamination
(5). Examine the fuel cell access covers for
evidence of fuel leakage and the
electrical bonding jumper for corrosion
and installation.
(a). Repair or replace components as
necessary.
(6). Remove the fuel cell access covers (ref.
Section 28-00-00).
(7). Examine the installation of the fuel cell
baffles.
(8). Make sure the flapper valves move
freely.
CAUTION
CAUTION
CAUTION