Fuel Flashcards
Normally sufficient fuel will flow by gravity to maintain MAX power from ____ to ____. However, by specification, gravity flow is guaranteed only to ____; flameouts have occured as low as ____.
Sea level to FL250
6000’ MSL
7000’ MSL
To prevent fuel starvation and engine flameout; what are the two things listed in the dash 1 that you should avoid doing?
- Perform max thrust dives with less than 650 lbs of fuel in either system
- Perform max thrust power in zero g flight or at negative load factors exceeding 10 seconds at 10,000 ft or 30 seconds at 30,000 ft
During low fuel state (less than ___ lbs) what should you consider during descents?
250lbs in either system
Do not maintain a nose down attitude for extended periods
Cross feeding is not recommended when…
BELLL
Boost pump failure
EED or Indicator Failure
Leak
Low altitude
Low fuel (dual engine)
Fuel quantity indicator sensor data failure causes… (3 things)
Blanking of failed system’s bar indicator
Loss of failed system fuel quantity readout
Loss of the total fuel readout
When fuel quantity indicator failure is experienced, is the fuel low-level caution light reliable?
No
What is of prime concern with a fuel leak?
Fire
If the fuel leak is massive, what might you consider before dealing with the fire potential by shutting down the engine?
Fuel loss itself must be dealt with promptly and correctly to make sure that sufficient fuel remains to RTB
General checklist flow for Low Fuel Pressure Light illuminated
- Crossfeed switch - ON
If the light stays on this indicated a fuel leak (or pressure sensor malfunction), if the light goes out it is probably a boost pump failure.
If light stays on…
2. Crossfeed - off
- Monitor to see if you have a leak
If you have a leak…
- Shut down engine, turn off boost pump, land as soon as possible
If light goes out… action depends on if solo
If solo:
- descend below FL250
- Reduce power
- Turn crossfeed off
What consideration should be made if you are solo and landing with right (aft) fuel system twice the quantity of the left (fore) fuel system?
Consider having ground personnel install tail stand prior to egress