Engine Malfunctions; Loss Of Oil Pressure - Textron Cessna Grand Caravan Ex 208B Pilot's Operating Handbook And Faa Approved Airplane Flight Manual

SECTION 3 CESSNA
EMERGENCY PROCEDURES MODEL 208B 867 SHP
GARMIN G1000

ENGINE MALFUNCTIONS

LOSS OF OIL PRESSURE

The complete loss of oil pressure, as evidenced by the red OIL PRESS
LOW annunciator and confirmed by the OIL PSI indicator reading,
implies that the pilot will eventually lose control of the propeller as the
propeller springs and counterweights drive the propeller blades into
feather and eventual engine stoppage. Therefore, if the pilot decides to
continue to operate the engine after loss of oil pressure, engine and
propeller operation should be closely monitored for indication of the
onset of propeller feathering or engine seizure. The ENGINE FAILURE
DURING FLIGHT checklist should be completed at that time.
Operation of the engine at a reduced power setting, preferably at the
minimum power required for the desired flight regime, will generally
prolong the time to loss of engine/propeller thrust.
Operation of the engine with the OIL PSI indicator in the yellow band
range is not considered critical, but is a cause for concern and should
be allowed only for the completion of the flight. Continued monitoring of
the OIL PSI indicator will provide an early indication of dropping oil
pressure due to insufficient oil supply or a malfunctioning oil pump, and
will give the pilot additional time to divert to a suitable emergency
landing area with the engine operating.
FAA APPROVED
3-50
208BPHCUS-00
U.S.