CESSNA SECTION 3
MODEL 172S NAV III EMERGENCY PROCEDURES
GFC 700 AFCS
U.S.
ROUGH ENGINE OPERATION OR LOSS OF POWER
(Continued)
LOW OIL PRESSURE
If the low oil pressure annunciator (OIL PRESS) comes on, check the
oil pressure indicator (OIL PRES on ENGINE page or OIL PSI on
SYSTEM page) to confirm low oil pressure condition. If oil temperature
(OIL TEMP on ENGINE page or OIL °F on SYSTEM page) remains
normal, it is possible that the oil pressure sending unit or relief valve is
malfunctioning. Land at the nearest airport to determine the source of
the problem.
If a total loss of oil pressure and a rise in oil temperature occur at about
the same time, it could mean that the engine is about to fail. Reduce
power immediately and select a field suitable for a forced landing. Use
only the minimum power necessary to reach the landing site.
172SPHBUS-02
3-35
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