Annunciator Panel Flashcards
Battery over temp
Temp greater than 160
Possible overcharge
Cabin Altitude above 10,000 ft with pressurization controller in the normal mode
Low Oil Pressure Warning
Oil pressure below 25 psi
Fault has been detected in the respective fuel gauging system. Monitor respective fuel gauge for proper indication. Check fuel quantity after landing.
Gauge unreliable
Respective fuel boost pump was either automatically or manually turned on (power was applied)
Remaining fuel in the respective tank is 185 +/- 15 LBS, or less
Low fuel pressure on the respective engine
Low pressure switch is closed
Low pressure switch closes at 4.65 psi (normal is 6-8 psi)
Indicates fuel filter bypass or impending bypass
Filter is clogged and fuel is bypassing the filter
Normal operation of the fuel transfer system. The supply tank FUEL BOOST ON annunciator will also be illuminated during normal operations
Attenuator switch is in the stow position
Generator INOP on respective engine
Power relay is open
Indicates an open start control circuit breaker in the aft junction box
Indicates an open 225 amp current limiter in the aft junction box.
Normal generated power is available to the respective busses, but the Cross tie buss will not supply power to the respective bus from the battery or from the opposite generator In the event of a generator failure.
Applicable ENGINE FIRE switch has been activated. All electrical, fuel, and hydraulic are systems are closed at the applicable firewall
Indicates the emergency pressurization system has been turned on at the AIR SOURCE SELECT knob
Air supplied from windshield anti ice system
Indicates the AIR SOURCE SELECT knob is set to the FRESH AIR position. The airplane will not pressurize in fresh air mode
Indicates INOP pumps
Hydraulic flow rate below normal
With LR or RH lights, probably hydraulic leak
Hydraulic system is pressurized because loading valve is closed.
Illuminates normally when the speed brakes, landing gear, or flaps are in the transit or the thrust attenuators are being stowed.
Speed brakes are in the fully extended position
Respective thrust attenuator is not in the stowed position.
Flaps greater than 35 and MASTER CAUTION annunciators will illuminate if the flaps are extended beyond 35 degrees and both throttles are advanced above 85% N2
PRW BRK LOW PRESS illuminates if pump pressure switch detects less that 750 psi. It will also illuminate the ANTISKID INOP annunciator
When the gear handle is placed down and the hydraulic brake system pressure is too low
Failure or improper position of one or more door switches and or possible disengagement of the lower forward cabin door pin
Indicates cabin door primary seal pressure is too low to maintain door seal integrity. Secondary seal should maintain pressurization
Door seal psi less than 8.45
Normal operation is indicated by illumination cycles of 6 seconds LH, 6 seconds off, 6 seconds RH, then off, repeating approximately every 3 minutes.
If switch is HIGH or LOW, over temp in the system. So select low, reduce windshield bleed valves to minimum flow
Air temp to windshield is above 300 degrees
AOA heater failure
No electrical power to the AOA vane
Pitot static heater failure
No electric power to the pitot tube heater, or one or both static port heaters
Engine inlet temp is below safe level for satisfactory ice protection
Under speed or under temp.
Illuminates steady after 1 minute after condition was sensed
Illuminates flashes and MASTER CAUTION after 2 minutes
Increase power above 70%
Under speed or under temp
Indicates wing leading edge temp is below safe level for satisfactory ice protection. This is normal when wing anti ice is first actuated, until normal temp is achieved, and if engine speed is reduced below approximately 70% N2. Can also indicate wing over temperature.
Temp greater than 540
Indicates that malfunction has caused the bleed air leaving the repetitive precooler to exceed allowable temperature. Likely occurs when engine, wind, and or windshield anti ice is on and engine power is high.
Cabin supply greater than 300 degrees F
Master caution associated
Environmental system air duct overheat
Select cooler temp, manual mode, then manually select cold.
Indicates failure of the visual annunciator test.
Indicates failure of the audio annunciator test
