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SECTION
3
CESSNA
EMERGENCY PROCEDURES MODEL
2088 (675 SHP)
FUEL SYSTEM MALFUNCTIONIINADVERTENT
FUEL FLOW INTERRUPTION PROCEDURES
(Continued)
A fuel selector off warning system advises the pilot if both fuel tank
selectors are in the OFF position before engine start, if either fuel tank
selector is OFF during engine start, or if one fuel tank selector is OFF
and the fuel level in the tank being used drops below approximately
25
gallons. The warning system includes a red annunciator labeled FUEL
SELECT OFF and two warning horns. If the FUEL SEL WARN circuit
breaker has popped or the START CONT circuit breaker has been
pulled (possibly for ground maintenance), the FUEL SELECT OFF
annunciator will be illuminated even with both fuel tank selectors in the
ON
~osition. This is a warnina to the pilot that the fuel selector off
warn ng system has been
deachated. See Section
7
for further deta.ls
on the fuel selector off warning system.
ELECTRICAL POWER SUPPLY SYSTEM
MALFUNCTIONS
BATTERY MALFUNCTIONS (Ni-Cad Battery Only)
If
a Ni-Cad battery is insralled, a banery temperature monitoring system
is provided to detect an inc.pient tnermal problem. The BATTERY HOT
annuncator ndicates ~nrernal battery temperarure is 140°F or higher.
Tne BATTERY OVERHEAT annunciator
indkates banerv temperarure
has reached 160°F. In either case, it is necessary to stop providing
charging current to the battery from the airplane power system. This is
accomplished by turning the battery switch off using the checklist
procedures. During these procedures, the
volt/ammeter (in BATT
position) should be used to verify that charging current is reduced to
zero. A battery temperature of 160°F may be critical and the flight
should be terminated as soon as practical. A battery temperature of
140°F is critical if the temperature and charging current continue to rise.
Under high ambient temperature (above 100°F) conditions, a battery
tem~erature of 140°F is not critical if a decreasing charging current
trend is verified and maintained by monitoring-the
foltkmmeter
selected to the BATT position.
(Continued Next Page)
Revision
23
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