CSP
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902RFM207E
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1
ROTORCRAFT FLIGHT MANUAL
MD900 (902 Configuration with PW 207E)
Normal Procedures
FAA Approved
Reissue 2
Revision 4
4
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33
4
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16. ONE ENGINE INOPERATIVE TRAINING
TRAIN mode:
Placing an engine control switch in the TRAIN position will simulate a one engine
inoperative (OEI) condition by resetting the selected engine's governed speed
to 92% N
P
, thereby putting the engine on standby while allowing single engine
training on the opposite engine. In the event of an engine failure (or inadvertent
switching to IDLE) on the opposite engine, the engine in TRAIN will automatical
ly revert to 100% N
P
. Also, if the opposite engine control switch is placed in
TRAIN both engines will revert to 100% N
P
.
NOTE
:
When an engine is placed into TRAIN the opposite engine will retain the 5 minute
Take
−
off Power engine parameter limiters and the IIDS does not rescale. The
result is more realistic pilot OEI training, providing rotor droop in training if the
power requested is above the limiters as would happen in a real OEI condition.
IDLE mode:
If rescaling of the TORQUE and EGT displays and activation of the ENG OUT
warning is desired, the pilot should select IDLE instead of TRAIN for OEI train
ing. In the event the opposite engine should fail during this time the pilot must
select FLY on the engine control switch to bring the good engine back to 100%
N
P
.
NOTE
:
When operating with one engine in the IDLE mode OEI limits apply. OEI limits
are generally considered for ‘‘emergency use only’’ and excursions into those
limits require recording in the engine log book and may increase the
maintenance required. Ref. Section VIII
for recording and maintenance action
requirements.
Precautions:
Pilots should consider such things as flight mode, gross weight, density altitude
and aircraft familiarity before conducting OEI training to avoid excursions into
OEI limits.
Recommended maximum takeoff weight for OEI training:
6000 lb (2722 kg) below 5000 Ft H
D
5200 lb (2359 kg) at or above 5000 Ft H
D
NOTE
:
For recommended Category A OEI training weights, refer to Section XI, Part IX.
Summary of Contents for MD900 Explorer
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