CSP
−
902RFM207E
−
1
ROTORCRAFT FLIGHT MANUAL
MD900 (902 Configuration with PW 207E)
Handling Servicing
and Maintenance
Revision 1
8
−
43
Reissue 2
VSCS CHECK
NOTE
:
This functional check may be performed with the engines off and aircraft
connected to an external power source.
Left and right VSCS switches
OFF
IIDS alphanumeric display
VERIFY CAUTION SEGMENT ON AND ‘‘TOTAL STAB
FAIL” INDICATION
VSCS indicator needles
CENTERED
Left VSCS switch
ON
Right VSCS switch
MOMENTARILY TO ‘‘TEST” AND THEN TO ‘‘ON’’
IIDS alphanumeric display
VERIFY ‘‘RIGHT STAB FAIL” INDICATION FOR 5 TO 8
SECONDS, THEN OUT
Left VSCS switch
MOMENTARILY TO ‘‘TEST” AND THEN TO ‘‘ON’’
IIDS alphanumeric display
VERIFY ‘‘LEFT STAB FAIL” INDICATION FOR 5 TO 8
SECONDS, THEN OUT
VSCS indicator needles
VERIFY NEEDLES ARE APPROXIMATELY 55% RIGHT
OF CENTER WITH 0% CLP AND AIRCRAFT LEVEL
NOTE
:
If the selected VSCS system fails the test, the failure annunciation will remain
on
the IIDS alphanumeric display.
WET ENGINE MOTORING RUN
Before performing this procedure, insure that the power supply
to the ignition exciter is disconnected (IGNTR circuit breakers
pulled).
When a fuel metering unit/pump is replaced in the field, motoring
or starting the engine is not recommended until priming is
accomplished by performing a engine wet motoring run.
Twistgrip on selected engine(s)
NORMAL
Fuel valve ON
CHECK
Fuel boost pump
ON
Engine control switch
IDLE
NOTE
:
Maintain starter operation for desired duration while observing starter limits.
Engine control switch
OFF
Fuel boost pump
OFF
NOTE
:
After a wet motoring run, a dry motoring should be accomplished before any start
is attempted.
CAUTION
CAUTION
Summary of Contents for MD900 Explorer
Page 4: ......
