ARROWD
change power settings unnecessarily, as this may hasten complete power loss.
Depending on the circumstances, it may be advisable to make an off airport landing while
power is still available, particularly if other indications of actual oil pressure loss, such as sudden
increase in temperatures, or oil smoke, are apparent, and an airport is not close.
If engine stoppage occurs, proceed to POWER OFF LANDING.
LOSS OF FUEL
PRESSURE
I.
Electric Boost Pump - On.
2.
Mixture Control Forward.
3.
Fuel Selector - Check on full tank.
If problem is not an empty fuel tank, land as soon as practicable and have the fuel system
checked.
IDGH OIL TEMPERATURE
An abnonnally high oil temperature indication may be caused by a low oil level, an
obstruction in the oil cooler, damaged or improper baffle seals, a defective gauge, or other
causes. Land as soon as practicable at an appropriate airport, and have the cause investigated.
A steady, rapid rise in oil temperature is a sign of trouble. Land at the nearest airport and
let a mechanic investigate the problem. Watch the oil pressure gauge for an accompanying loss
of pressure.
ALTERNATOR FAILURE
Loss of alternator output is detected through a zero reading on the ammeter. Before
executing the following procedure, insure that the reading is zero and not merely low by
actuating an electrically powered device, such as the landing light. If no increase in the ammeter
reading is noted, alternator failure can be assumed.
1.
Reduce electrical load.
2.
Alternator Circuit Breakers - Check.
3.
":Alt" Switch - Off (for 1 second), then On.
If the ammeter continues to indicate no output, or alternator will not stay reset, tum off
"Alt" switch, maintain minimum electrical load, and land as soon as practical. All electrical
power is being supplied by the battery.
4-8
NOTE
If the battery is fully discharged, the gear will have to be lowered
using the "EMERGENCY LANDING GEAR EXTENSION"
procedure, and the position lights will of course not be operating.
EMERGENCY PROCEDURES
REVISED: December S, 1975
N16422 POH
