Uncommanded Engine Power Reduction To Idle; Emergency Power Lever Not Stowed - Textron Cessna Grand Caravan Ex 208B Pilot's Operating Handbook And Faa Approved Airplane Flight Manual

CESSNA
MODEL 208B 867 SHP
GARMIN G1000
ENGINE MALFUNCTIONS

UNCOMMANDED ENGINE POWER REDUCTION TO IDLE

A malfunction in the pneumatic or governor sections of the fuel control
unit can cause engine power to decrease to minimum flow idle.
Symptoms of this type failure would be an ITT indication in the typical
idle range of 500°C to 600°C, N
altitude), and no engine response to POWER lever movement. If this
type of malfunction has occurred, the EMERGENCY POWER lever
(fuel control manual override) can be used to restore engine power. To
use the manual override system, set the POWER lever to IDLE position
and move the EMERGENCY POWER lever forward of IDLE and
advance as required.
When using the fuel control manual override system,
engine response can be more rapid than when using
the POWER lever. Utilize slow and smooth movement
of the EMERGENCY POWER lever to avoid engine
surges, and/or exceeding ITT, N
•
When using EMERGENCY POWER lever, monitor
RPM when reducing power near idle, to keep it from
decreasing below 65% in flight.
•
The EMERGENCY POWER lever can have a dead
band, such that no engine response is observed during
the initial forward travel from the IDLE position.

EMERGENCY POWER LEVER NOT STOWED

The red EMERG PWR LVR annunciator was designed to alert the pilot
of the EMERGENCY POWER Lever position prior to and during the
engine start sequence. If the EMERGENCY POWER Lever is moved
from the NORMAL position at any time with the engine running, an
amber annunciator will be shown.
FAA APPROVED
208BPHCUS-00
EMERGENCY PROCEDURES
(Continued)
of 48% or above (increases with
g
CAUTION
, and torque limits.
g
NOTE
SECTION 3
N %
g
3-51
U.S.