Hydraulic Pressure > 3200psi (Flight)
Caution light not illuminated
Hydraulic Caution Light Illuminated.
LEFT or RIGHT GENERATOR and HYDRAULIC light on same side illuminate simultaneously.
Gearbox Failure
1. Land ASAP
2. If excessive vibration exists - Shutdown affected engine
Note: Right engine no crossover - flaps?
Note: If left engine - taxi with caution, not to exceed 5 knots, minimize side forces, install pins as soon as practical.
Generator Failure (Partial).
LEFT or RIGHT GENERATOR light illuminates (good crossover).
Single Generator failure
1. Adjust RPM to other side of shift range (65-70%).
Note: if not practical to reduce, ONE reset attempt is authorized. A second attempt is authorized after RPM is reduced below shift range.
Warning: If generator caution light illuminates immediately after reset, a short circuit may be the cause… Further attempts to reset could cause a generator FIRE.
2. Generator Switch - RESET then ON.
4. If successful - leave engine in range of successful generator operation until on final, then use throttle as necessary for landing.
5. If unsuccessful - Generator switch OFF, land as soon as practical,
After landing clear runway and shutdown engine.
Caution: If left engine - taxi with caution, not to exceed 5 knots, minimize side forces, install pins as soon as practical.
Left Generator light on
PITOT HEAT OFF, XFMR RECT FAIL Lights illuminated
Left Generator failure, no crossover
Note: Pitot Heat is still available.
1. Adjust RPM to opposite side of shift range (65 - 70%).
Note: if not practical to reduce, ONE reset attempt is authorized. A second attempt is authorized after RPM is reduced below shift range.
Warning: If generator caution light illuminates immediately after reset, a short circuit may be the cause… Further attempts to reset could cause a generator FIRE.
2. Generator Switch - RESET then ON.
If successful - leave engine in range of successful generator operation until on final, then use throttle as necessary for landing.
5. If unsuccessful - Generator switch OFF, land as soon as practical,
After landing clear runway and shutdown engine.
Caution: If left engine - taxi with caution, not to exceed 5 knots, minimize side forces, install pins as soon as practical.
Right Generator Light on
PITOT HEAT OFF, XFMR RECT FAIL, ENG ANTI-ICE ON lights illuminated
Right Generator failure, no crossover
Note: Pitot Heat is Lost.
1. Adjust RPM to opposite side of shift range (65 - 70%).
Note: if not practical to reduce, ONE reset attempt is authorized. A second attempt is authorized after RPM is reduced below shift range.
Warning: If generator caution light illuminates immediately after reset, a short circuit may be the cause… Further attempts to reset could cause a generator FIRE.
2. Generator Switch - RESET then ON.
If successful - consider setting flaps to 60% and trimming the aircraft to level flight (fuel permitting) in the event the generator fails again. Leave engine in range of successful generator operation until on final, then use throttle as necessary for landing.
5. If unsuccessful - Generator switch OFF, land as soon as practical,
After landing clear runway and shutdown engine.
Caution: If left engine - taxi with caution, not to exceed 5 knots, minimize side forces, install pins as soon as practical.
LEFT and RIGHT GENERATOR Lights illuminated
(LEFT and RIGHT FUEL PRESS, ENGINE ANTI-ICE ON, XFMR RECT FAIL, BATTERY DISCHARGE, and PITOT HEAT OFF caution lights illuminated)
Dual Generator Failure
1. Battery switch - Check ON.
2. Generator switches - RESET then ON.
Note: If one generator resets, refer to appropriate single generator fail checklist.
Warning: If generator caution light illuminates immediately after reset, a short circuit may be the cause… Further attempts to reset could cause a generator FIRE.
3. If both generators fail to reset:
a. Generator switches OFF
b. Land ASAP. Attempt to remain VFR
c. Battery - EMER
Note: With battery switch ON, battery life should be approximately 18 minutes. Use of the emergency bus can extend life to over 45 minutes. Selection of EMER will result in the loss of the caution, warning, and indicator system.
4. Descend to lowest practical altitude above 25,000 feet.
a. Limit VHF transmissions, expect complete electrical failure below 19 volts.
b. Prior to lowering landing gear
1. Battery - ON
2. A no flap landing will required [2x(2,500 + fuel weight)].
Note: With complete loss of electrical power landing gear must be extended via alternate system.
Caution: If left engine - taxi with caution, not to exceed 5 knots, minimize side forces, install pins as soon as practical.
XFMR RECT FAIL and BATTERY DISCHARGE lights illuminated
Dual Transformer Rectifier Failure 1. Remain VMC, if possible Note: Battery can be overcharged, and read above 25 volts temporarily. battery voltage must be monitored. 2. Voltmeter - Check 3. If Voltmeter reads below 25 volts: a. Land ASAP b. Battery - EMER Note: With battery switch ON, battery life should be approximately 18 minutes. Use of the emergency bus can extend life to over 45 minutes. Selection of EMER will result in the loss of the caution, warning, and indicator system.
Hydraulic Pressure > 3200psi (Ground)
Caution light not illuminate
2. If left engine - taxi with caution, not to exceed 5 knots, minimize side forces, install pins as soon as practical.
XFMR RECT FAIL illuminated)
Single Transformer Rectifier Failure
Electrical Fire
Smoke/Fumes/Odors in cockpit
unidentified odors will be considered toxic
Canopy Loss
Cabin Pressure Loss
Oxygen System Emergency Operation
Engine fire (Ground)
Engine Fire (Flight)
Oil system malfunction
Engine failure/shutdown during flight
(Right engine, check crossover)
Restart (Flight)
Compressor stall
Nozzle Failure (Closed)
Nozzle Failure (Open)