Emergency Power Lever - Cessna Grand Caravan 208B G1000 Manual

SECTION 7
AIRPLANE AND SYSTEMS DESCRIPTION

EMERGENCY POWER LEVER

The EMERGENCY POWER Lever is connected through linkage to the
manual override lever on the fuel control unit and governs fuel supply to
the engine should a pneumatic malfunction occur in the fuel control
unit. When the engine is operating, a failure of any pneumatic signal
input to the fuel control unit will result in the fuel flow decreasing to
minimum idle (about 48% N
The EMERGENCY POWER Lever allows the pilot to restore power in
the event of such a failure. The EMERGENCY POWER Lever has
NORMAL, IDLE, and MAX positions. The NORMAL position is used for
all normal engine operation when the fuel control unit is operating
normally and engine power is selected by the power lever. The range
from IDLE position to MAX governs engine power and is used when a
pneumatic malfunction has occurred in the fuel control unit and the
power lever is ineffective. A mechanical stop in the lever slot requires
that the EMERGENCY POWER Lever be moved to the left to clear the
stop before it can be moved from the NORMAL (full aft) position to the
IDLE position.
The knob on the EMERGENCY POWER Lever has
crosshatching. The crosshatching is visible when the lever
is in MAX position. Also, the EMERGENCY POWER Lever
is annunciated by a Red CAS message on the PFD
whenever it is unstowed from the NORMAL position with
the ITT indications in either of the OFF or STRT modes.
These precautions are intended to preclude starting of the
engine with the EMERGENCY POWER Lever inadvertently
placed in any position other than NORMAL.
•
The EMERGENCY
associated manual override system are considered
to be an emergency system and should be used only
in the event of a fuel control unit malfunction. When
attempting a normal start, the pilot must ensure that
the EMERGENCY POWER Lever is in the NORMAL
(full aft) position; otherwise, an over-temperature
condition may result.
•
When using the fuel control manual override system,
engine response may be more rapid than when
using the power lever. Additional care is required
during engine acceleration to avoid exceeding
engine limitations.
U.S.
7-44
at sea level and increasing with altitude).
g
NOTE
CAUTION
POWER
(Continued Next Page)
CESSNA
MODEL 208B G1000
Lever and its
208BPHBUS-01