Piper Cherokee Six 300 Information Manual page 52

CHEROKEE SIX . 3OO
ENGINE POWER I,oSS IN FIIGHT
Complete engine power los is usually caused by fuel flow intemrption, and power will be
restored shortly after fuel flow is restored. If power loss occurs at low altitude, the first step is
to prepare for an emergency landing (See POWER OFF LANDING). Maintain an airspeed of at
least 100 MPH IAS, and if altitude permits, proceed as follows:
l. Fuel Selector - Switch to another tank containing fuel.
2. Electric Fuel hrmp - On
3. Mixture - Rich
4. Alternate Air - On
5.
Engine Gauges - Check for an indication of the cause of power loss.
6.
If no fuel pressure is indicated, check tank selector position to be sure it is on a tank
containing fuel.
When power is restored:
8. Altemate Air - Off
9. Electric Fuel hrmp - Off
If the above steps do not restore power, prepare for an emergency landing.
If time permits:
l. Ignition Switch - "L" then "R" then back to "BOTH."
2.
Throttle and Mixture - Different settings. (This may restore power if the problem is
too rich or too lean a mixture, or if there is partial fuel rystem restriction.)
3.
Try other fuel tanks. (Water in the fuel could take some time to be used up, and
allowing the engine to windmill may restore power. If power loss is due to water, fuel
pressure indications will be normal.)
NO13
If engine failure was caused by fuel exhaustion, power will not be
regained after tanks are switched until empty fuel lines are filled,
which may require up to ten seconds.
If power is not restored, proceed with POWER OFF LANDING procedure.
EMERGENCY PROCEDURES
ISSUED: JULY 12,1973
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