Engine Run Flashcards
Indication of uncommanded/auto acceleration
RPM advances above 31% before Idle
FTIT increases
Shutdown procedures for uncommanded/ auto acceleration
THRO- OFF
ENG CONT - SEC
FUEL MASTER - OFF
ENG FEED- OFF
Characteristics to a hot start?
FTIT is above 935C on start
Indications to anticipate a hot start
- FTIT increases rapidly through 750C, while ENG RPM is below 40%
- rate of ENG RPM increase drops-off sharply, while ENG RPM is below 40%
- ENG RPM begins to decrease following JFS cutout
Shutdown procedures for a hotstart
- THRO OFF
- Monitor FTIT
- If FTIT remains above 500C, motor engine with JFS until is below 200C, not to exceed 4 min
Characteristics of a hung start
Eng RPM has stopped increases below IDLE, FTIT stabilized below 935C
Shutdown procedures for a hung start
- THRO OFF
- Motor engine for 20 sec if JFS start 1 was attempted, 1 min for JFS start 2
Characteristics of a No Start
Engine light-off does not occur within 10 sec of throttle in idle(15 sec for after main fuel system)
Shutdown procedures for a No Star
- THRO OFF
- Motor engine for 20 sec if JFS start 1 was attempted, 1 min for JFS start 2
Nonrecoverable stalls are called
stagnations
stagnations are characterized by
- Rising FTIT and decreasing RPM
- Rising FTIT and RPM less than 62%
- Lack of response to throttle movement
Recovery from stall or stagnation.
If a stall occurs______ and if stall clears______.
SNAP throttle to IDLE, stabalize for 5min idle run and shutdown engine
If a stall does not clear, it is a________________.
Stagnation
Shutdown procedures for a stagnation.
Retard throttle to OFF and monitor FTIT.
If FTIT remains above 500C, motor engine with JFS until is below 200C. Not to exceed 4 min.
If a hydrazine leak is detected during engine run.
- nonpersonnel clears the area.
- shutdown engine.
- abandon acft and clear the area.
If acft jumps chocks.
SNAP throttle to IDLE. Apply max toe braking.
If acft jumps chocks. And brakes fail.
Make sure PARKING BRAKE is selected. select CHANNEL 2, and re-apply max toe braking.
If acft jumps chocks. And brakes fail. And engine does not respond to throttle reduction.
THRO OFF - FUEL MASTER OFF - ENGINE FEED OFF.
If an engine fire occurs and an internal oil leak is suspected,______________.
do not attempt to motor engine since oil pumped from within will feed fire.
If fire pesists after shutdown and is contained within engine or engine inlet area,_____(_____)and__________.
cover inlet(only if run screed is not installed) and discharge fire ertinguishing agent into engine exhaust to extinguish fire.
If fire is in fuselage area,________________.
do not motor engine. Motoring may supply added fuel.
If fire is isolated to engine exhaust,____________________.
motor engine in an attempt to blow out fire.
Allow JFS after fire to_______(_____).
burn itself out(about 1 min).
If fire is witin JFS, do not__________unless____________.
dicharge extinguishing agents into JFS inlet unless fire is self sustaining or spreading into acft.