CSP−900RMM−2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 604
Revision 34
28-00-00
2. Inspections for the Fuel Vent System
NOTE: There is no definite minimum or maxi
mum service life of the fuel vent system. The
best insurance for trouble-free service is the
correct installation of the fuel vent system.
Do periodic inspections to find indications of
fuel vent system failure or leakage.
A. Inspection of the Fuel Vent System
Aviation Turbine Fuel
NOTE:
Do a Fuel Cell Leak Check/Pressure Test
to determine if there are leaks in the fuel
system. If the pressure test does not indi
cate leakage, a visual inspection is not
necessary.
Do a visual inspection of fuel vent compo
nents when floor panels are removed for
other maintenance.
(1). Remove the cabin seats, if applicable
(ref. Section 25-20-00).
(2). 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
both of these panels are removed with fuel
in the rotorcraft.
(3). Remove access panels AL155, AR155,
A160, AL165, AR165, A217, AL230,
and AR230 (ref. Section 53-20-00).
(4). Remove interior trim panels station 155
left forward bulkhead as required (ref.
Section 25-10-00) and interior trim
panel aft bulkhead station 230.0 right
side as required (ref. Section
25-20-00).
(5). Do an inspection of the fuel vent tubes:
(a). Examine the fuel vent tubes for
cracks, dents, nicks, and corrosion.
(b). Examine the hose connections for
cracks, cuts, tears, punctures, and
collapsed hoses.
(c). Examine the installation of the
clamps.
(d). No damage is permitted.
(e). Repair or replace components as
necessary.
(6). Do an inspection of the forward and aft
standpipe vent tubes and flame
arrestors:
(a). Examine the fuel vent tubes for
cracks, dents, nicks, and corrosion.
(b). Examine the hose connections for
cracks, cuts, tears, punctures, and
collapsed hoses.
(c). Examine the installation of the
clamps.
(d). No damage is permitted.
(e). Repair or replace components as
necessary.
(7). Examine the fuel vent float/rollover
valves for serviceable condition,
installation, leakage, and corrosion.
(a). No damage is permitted.
(b). Repair or replace components as
necessary.
(8). Inspect electrical bonding jumpers and
clamps for corrosion, damage, and
installation.
(a). No damage is permitted.
(b). Repair or replace components as
necessary.
(9). Install access panels AL155, AR155,
A160, AL165, AR165, A217, AL230,
and AR230 (ref. Section 53-20-00).
(10). Install the interior trim panels (ref.
Section 25-10-00).
(11). Install the carpet, if applicable (ref.
Section 25-20-00).
(12). Install the cabin seats, if applicable
(ref. Section 25-20-00).
CAUTION
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