Nice Air Operation Procedure PA-34 Seneca
Copy Right Nice Air 2575 Robert Fowler Way, San Jose, CA 95148 Phone(408)729-3383
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running?
No. There is anti-feather lock pin which prevent the prop from feathering below, 800RPM. When the
RPM is high, the pin hide inside sleeve due to centrifugal force. When the RPM is low, the spring
push out the pin to stop the movement of the prop.
Fuel system
What is the fuel system of the Seneca?
Fuel pump system.
How many fuel pumps are there?
4. Each engine has engine driven fuel pump and electrical fuel pump.
What drives fuel pumps?
Engine driven and electrical motor.
When do you use electrical fuel pump?
To start the engine.
Takeoff, climb and landing.
When the engine driven pump is inoperative.
How many fuel tanks are there?
Two integral tank in each wing. Total four tanks.
What is the capacity of each tanks( total/usable)?
Total 98 gallons. 2.5 gallons unusable each side makes usable fuel of 93 gallons.
How many fuel gauges are there?
Three. Fuel quantity gauges. Fuel pressure gauges. Furl flow gauges.
Can you send the fuel from right tank to left engine? How?
Yes. Select cross feed on the left fuel selector valve. The P.O.H says fuel selector valve for the inop
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erative engine should be “off”.
When can you use the cross feed line?
Only in cruise.
Can you select cross feed on both engine?
P.O.H said "NO" though you can physically position it.
What is the purpose of cross feed?
To balance the weight laterally when one engine is inoperative. For longer range/endurance.
Draw the fuel system.
Refer P.O.H.
How many drains are there? Where are they located?
Eight. There are two quick drains on the bottom of the fuselarge which is drained by the levers in the
cockpit. Each fuel tanks (4). Fuel filter on each engine (2).
What is the minimum grade of fuel?
100.
