CSP
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E
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1
ROTORCRAFT FLIGHT MANUAL
Emergency and
Malfunction Procedures
MD 500E
(Model 369E)
Revision 14
3
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26
FAA Approved
3
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15. OTHER MALFUNCTIONS
ENGINE AIR PARTICLE SEPARATOR FILTER CLOGGED (IF INSTALLED)
Indications:
Yellow
AIR
FILTER
CLOGGED
indicator ON.
NOTE
:
Certain flight conditions may cause the yellow caution indicator to flicker
momentarily. The FILTER BYPASS DOOR should be opened only when a
steady illumination of the caution indicator is five seconds or more.
Conditions:
A predetermined pressure differential has been reached across the engine
air inlet.
Procedures:
FILTER BYPASS control handle: OPEN
SCAV AIR: OFF
Service particle separator prior to next flight (Ref. HMI).
To prevent compressor erosion avoid operation in a dirty or dusty
environment with the filter bypass door open.
CAUTION