General checklist flow for generator failure in flight
- Reset the gen, then turn it back on
If that doesnt work…
2. Go to other side of shift range
- Try another rest, then turn it back on
If that works, reference gearbox failure to shift
If that doesnt work…
- Gen - OFF
- Land as soon as practical
- After landing, shut down engine with failed generator after clearing the runway
If a generator fails, resets successfully, then fails again, can another reset be attempted?
Yes
What are the indications of a left gen, no cross?
All AOA indexer lights on
Utility hydraulic gauge freezes. Left oil pressure and left fuel flow EED indications display off.
MASTER CAUTION, LEFT GENERATOR, and LEFT FUEL PRESSURE lights illuminate
All exterior lights, interior instrument lights, and console lights are inoperative.
What are the indications of a right gen, no cross?
Flight hydraulic gauge freezes, right fuel flow, oil pressure, and both fuel quantity EED indications display off
MASTER CAUTION, RIGHT GENERATOR, RIGHT FUEL PRESSURE, and ENG ANTI-ICE lights illuminate
At night, when Caution and warning lights are set to DIM, Caution, Warning, and Indicator lights go to bright
If a generator does not reset successfully, are you allowed to attempt additional resets?
No, refrain from further attempts due to potential generator burning
If this generator fails (left/right) with no AC crossover, automatic airspeed calculation will be disabled.
Left
What is indicated by loss of certain electrical components without illumination of the LEFT/RIGHT GENERATOR light?
Loss of one or two phases of an AC generator
Three phase AC items include the following (4 things mentioned):
- Boost Pump
- TRUs
- Flaps (slow flap actuation)
- HUD (two or more phases required to affect HUD operation)
A gearbox failure to shift is indicated when the LEFT or RIGHT GENERATOR caution light illuminated when accelerating or decelerating through the shift range of _____.
65-75%
What is the general checklist flow for Gearbox Failure to Shift?
- RPM back in range of successful operation
- Reset the generator if necesary
- Leave RPM in that range until on Final Approach then use throttles as necesary
- Land as soon as practical
With both TRUs failed, battery life is approximately ____.
15 minutes
If complete DC failure occurs with the landing gear extended, ___ is lost.
Downside hydraulic pressure
What is the general checklist flow for an Electrical Fire?
- Oxygen - 100%
- CABIN PRESS switch - RAM DUMP (below FL250)
- Battery and L/R Gen - off… (with boost pumps inop you could flame out above FL250)
- All electrical equipment - off
- Battery, generator, electrical equipment - on (as necesary for flight and landing)
What is indicated by loss of TACAN and UHF radio?
Right essential 28-VDC bus failure
What should you do on a right essential DC bus failure in IMC?
Fly no-gyro vectors using VHF radio to a LOC/ILS final
With a left essential 28-VDC bus failure, what can you expect if you are in dim mode?
A false XMFR RECT OUT light
With are the main things you lose from a nav/com perspective with a left essential 28-VDC bus failure?
VHF radio is out as well as VOR/ILS and DME. Attitude information is limited to a minimum of 9 minutes based on the standby.
