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WorksheetsPowerplantAW139
Total questions: 5
Worksheet time: 4mins
1. What is not an indication of an engine compressor stall?
a. Steady or increasing torque.
b. A rapid increase in PI with ITT as limiting parameter.
c. Loud banging or popping noises.
d. Fluctuating NG speed coupled with failure to respond to power demand.
2. If the 1 or 2 ENG OIL TEMP caution light illuminates and the associated engine
oil temperature gauge indicates 145 degrees to 150 degrees Celsius, how long is
the engine permitted to run before shutdown?
a. A maximum of 1 minute.
b. A maximum of 2 minutes.
c. A maximum of 30 seconds.
d. A maximum of 90 seconds.
3. What is not a good indication, during AEO operation, to confirm an engine
failing after the associated 1 or 2 ENG CHIP light illuminates?
a. Decreasing rotor speed.
b. Engine speed begins to decrease.
c. Engine oil pressure/temperature changes significantly.
d. Engine vibration increases.
4. What problem is indicated if a 1 or 2 OVSPD caution light illuminates?
a. An engine runup has occured or a drive shaft has failed.
b. The engine fuel governor has malfunctioned.
c. The main transmission gearing is rotating too fast.
d. The main rotor is turning too fast.
5. What is recommended if, during engine start, NG stagnates below 54 percent?
a. Shut down the engine.
b. Re-engage or keep starter engaged until NG begins to increase.
c. Move the Engine Control lever to FLIGHT position.
d. Leave fuel pump ON.
