MD Helicopters Inc.
Optional Equipment Manual
900P5663200
CSP–900–S4
Airframe Fuel Filter
Page 207
Original
4. Troubleshooting
(Ref. Table 201)
The following troubleshooting procedures are a
brief summary of faults which may be encoun5
tered.
Table 201. Troubleshooting
Fault
Probable Cause
Corrective Action
Ref. Section
FUEL FILTER L
or
R
caution lamp does not light
No power. Battery switch off.
Apply aircraft battery or
external power.
Circuit breaker open.
Investigate cause for open
circuit breaker.
98–40–00
Defective wiring or
connection.
Locate circuit defect and repair
as required.
98–40–00
Defective fuel filter pressure
switch.
Replace airframe fuel filter.
FUEL FILTER L
or
R
caution
light on.
System not reset.
Press FUEL FILTER caution
light to reset.
Clogged fuel filter.
Drain filter bowl into a suitable
container. Inspect sample for
foreign substances.
If foreign substances are found,
clean filter bowl and remove
and replace filter element.
Defective fuel filter pressure
switch.
Replace airframe fuel filter.
Contaminated fuel.
Perform Contaminated Fuel
Cell Procedure.
28–00–00
Defective wiring or
connection.
Locate circuit defect and repair
as required.
98–40–00
Both
FUEL FILTER L
and
R
caution lights on.
System not reset.
Press FUEL FILTER caution
light to reset.
Defective wiring or
connection.
Locate circuit defect and repair
as required.
98–40–00
Contaminated fuel.
Perform Contaminated Fuel
Cell Procedure.
28–00–00
Summary of Contents for MDHI MD900
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