EP Natops Questions Flashcards
What are the three types of airs tarts?
PMU NORM, PMU OFF, immediate air start
What is the air start envelope?
125-200 KIAS for SL to 15,000’, or 135-200 KIAS for 15,001 to 20,000’
When is the PMU off airs tart recommended?
For PMU malfunctions
How much altitude should you expect to lose during an air start attempt?
1200’ for an air start attempt performed at 125 KIAS.
How much time is required to complete the air start sequence?
40 seconds
What factors will increase ITT during an air start?
Higher altitude, slower speed
After a successful air start, what action is necessary to get the generator online?
Starter switch to NORM
What should the pilots attention be focused on during an air start?
Fuel flow, ITT, N1
How soon should you see a rise in N1 after selecting starter switch to AUTO/RESET?
Within 5 seconds, otherwise discontinue air start.
How soon should you see a rise in ITT after fuel flow?
10 seconds
How long will it take for the prop to un-feather?
Approximately 20 seconds after N1 reaches 45%
What is the most critical action during the PMU OFF start?
PCL movement while monitoring fuel flow, ITT, and N1
What might cause in commanded power changes to occur?
PMU scheduling due to actual or faulty inputs to the PMU, oil/engine/fuel contamination, propeller dump solenoid failure, or loss of oil pressure to the pitch change mechanism due to “prop-sleeve touchdown”