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24
emergency power lever
Introduction
The manual override function, when connected to the EPL, is intended for
use during emergencies or closely monitored training only and must never
be used during normal engine operation.
This lever should only be used to modulate engine power to allow the pilot
to continue flight to the nearest airport in the event of malfunction in the
fuel control pneumatic system resulting in one of the following conditions:
1. Uncommanded power roll back and inability to recover with the
Power Lever Assembly (PLA).
2. No response to PLA movement, when starting from or around idle.
3. PLA becomes stuck at or around idle.
The EPL does not duplicate the function of the PLA and is not to be used as
an optional means of controlling the engine.
The EPL overrides all automatic fuel control features and acts directly
on the fuel valve to directly modulate the fuel flow to the engine. Rapid
movements of this lever should not be made for any reason whatsoever.
EPL sensitivity increases with altitude and above 5000 ft., extreme care
should be exercised.
Please refer to the applicable AFM or POH for correct operation of the EPL.
CAUTION:
WHEN USING THE MANUAL OVERRIDE SYSTEM, THE ENGINE RESPONSE
MAY BE MORE RAPID THAN WHEN USING THE POWER LEVER. A RAPID
INCREASE IN EMERGENCY POWER LEVER POSITION TOWARDS MAXIMUM
IS TO BE AVOIDED, AS THIS CAN CAUSE ENGINE SURGE, ENGINE OVER-
TEMPERATURE, Ng OVER-SPEED OR OVER-TORQUE.
Inappropriate use of the EPL will increase maintenance costs and can be a
contributory factor to CT blade fractures.
emergency power lever
Introduction
The manual override function, when connected to the EPL, is intended for
use during emergencies or closely monitored training only and must never
be used during normal engine operation.
This lever should only be used to modulate engine power to allow the pilot
to continue flight to the nearest airport in the event of malfunction in the
fuel control pneumatic system resulting in one of the following conditions:
1. Uncommanded power roll back and inability to recover with the
Power Lever Assembly (PLA).
2. No response to PLA movement, when starting from or around idle.
3. PLA becomes stuck at or around idle.
The EPL does not duplicate the function of the PLA and is not to be used as
an optional means of controlling the engine.
The EPL overrides all automatic fuel control features and acts directly
on the fuel valve to directly modulate the fuel flow to the engine. Rapid
movements of this lever should not be made for any reason whatsoever.
EPL sensitivity increases with altitude and above 5000 ft., extreme care
should be exercised.
Please refer to the applicable AFM or POH for correct operation of the EPL.
CAUTION:
WHEN USING THE MANUAL OVERRIDE SYSTEM, THE ENGINE RESPONSE
MAY BE MORE RAPID THAN WHEN USING THE POWER LEVER. A RAPID
INCREASE IN EMERGENCY POWER LEVER POSITION TOWARDS MAXIMUM
IS TO BE AVOIDED, AS THIS CAN CAUSE ENGINE SURGE, ENGINE OVER-
TEMPERATURE, Ng OVER-SPEED OR OVER-TORQUE.
Inappropriate use of the EPL will increase maintenance costs and can be a
contributory factor to CT blade fractures.
Summary of Contents for PT6A Turboprop
Page 1: ...Key NEW OWNER WISDOm YOUR PT6A turboprop ...
Page 5: ......
