CSP
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E
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1
Handling, Servicing,
and Maintenance
ROTORCRAFT FLIGHT MANUAL
MD 500E
(Model 369E)
Revision 14
7
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21/(7
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22 blank)
FAA Approved
Procedures:
Ensure engine anti−ice, cabin heat, and scav air (if installed) are off prior
to engine wash or rinse.
Water injection will be started three seconds prior to starter
engagement.
Motor the engine with the twistgrip in CUTOFF.
Release starter switch as necessary to maintain between 5% and 10% N
1
speed during the wash/rinse.
Water injection will continue during coast down until N
1
stops.
Allow engine to drain.
Within 15 minutes of the water rinse, operate the engine at idle for five
minutes and actuate anti−ice, cabin heat, and scav−air (if installed) sys-
tems for one
minute
to purge and evaporate all residual water .
