ANNUNCIATORS Flashcards
ILLUMINATION INDICATES ENGINE OIL PRESSURE IS BELOW 60 PSI IN DESIGNATED ENGINE. DO NOT EXCEED 62% TORQUE.
- indicates that the fire extinguishing system is armed
- DISCHARGED annunciator occurs after the switchlight has been pushed to activate the extinguishing system
- ENG FIRE annunciator indicates fire in the designated engine
- steady FW VALVE CLOSED annunciator indicates the valve is closed; a flashing annunciator indicates the valve position and switch disagree
- possible metal contamination in the forward gear reduction case oil supply
- indicates that the designated ignition and start switch is ON or that the auto ignition system is armed and engine torque is below 17%
- indicates that prop levers are not on the appropriate postion of HIGH RPM/LOW PITCH with landing gear extended
- indicates that the propeller ground idle stop solenoid has failed
- indicates that the auto-feather switch is not armed and landing gear is extended
- indicates that the designated auto-feather is armed and power levers are advanced above approximately 90% N1
- indicates that the designated propeller is below the flight idle stop
- indicates that the designated generator is off-line
- indicates that the designated bus is isolated from the Center bus
- the battery is isolated from the generator buses
- the external power connector is plugged in
- the generator bus ties have been manually closed
- fuel pressure is below approx 10 PSI
motive flow pressure lost while fuel remains in the Aux tank on the designated side
- the designated side has less than 30 mins fuel remaining at max continuous power
- the crossfeed valve is in the selected position
- the hydraulic fluid level in the reservior is low
- the designated landing gear is down-and-locked. If any of the lights do not illuminate after gear extension or the gear handle light remains illuminated, gear may be unsafe.
- landing gear in transit
- one or more gear(s) not down and locked
- one or more gear(s) not fully retracted
- landing gear UP and on or both power levers retarded below approximately 84% to 86% N1
- landing gear UP and flaps extended beyond APPROACH position (regardless of power lever position)
the landing and/or taxi light are on with landing gear up
Rudder Boost switch is off
Airstair or cargo door is unlocked or open
cabin pressure altitude exceeds 12,000 ft
cabin differential pressure exceeds 6.9 PSI
Melted or failed plastic bleed air failure warning line. Monitor during engine start. Either engine extinguishes both annunciators upon starting.
These annunciators may also illuminate momentarily during simultaneous wing boot and brake deice operation at low N1.
If annunciator immediately goes away, disregard.
Oxygen arming handle is not pulled or the system failed to charge.
The designated bleed air switch is not in OPEN position.
Floor distribution air duct temperature has reached 300°F.
Indicates that the electric heat power relay is closed and applying power to the electric heat power control relay for the heating elements.
May also illuminate during simultaneous wing boot and brake deice operation at low N1 speeds.
The passenger oxygen system is charged and available to passenger masks.
Cabin altitude exceeds 10,000 ft.
- Right engine N1 is too low for air conditioning load. (Below 62% N1)
- Air conditioning clutch has disengaged.
The designated anti-ice vane system is inoperative.
the pitot mast heat is inoperative.
the annunciator will also illuminate anytime the PITOT switch is in the OFF position.
Designated engine anti-ice vanes are in position for icing conditions.
Wing surface deice system is operating.
Horizontal stabilizer surface deice system is operating.
Designated brake deice system is operating.
