Annunciators / Lights Flashcards
A/P Disengage Light (RED)
Flashes and tones sounds when A/P disengaged. Steady when below 800ft on dual channel approach and stab out of trim.
GRD POWER AVAILABLE
Ground power is connected to the aircraft and meets the aircraft’s power quality standards.
APU GEN OFF BUS
APU is running and not powering a bus.
GEN OFF BUS
IDG is not providing power to the related transfer bus.
BATT DISCHARGE
Excessive battery discharge detected with BAT switch ON
TR UNIT
On The Ground
In-Flight
On The Ground - Any TR Unit has Failed
In-Flight - TR1 FAILED, or TR2 and TR3 have FAILED.
ELEC
A fault exists in the DC power system or standby power system.
TRANSFER BUS OFF
Related transfer bus is not powered.
SOURCE OFF
No source has been manually selected to power the related transfer bus, or the manually selected source has been disconnected.
TAKEOFF CONFIG Light (Red)
What causes this light to illuminate?
Activates on the ground as throttles are advanced if the airplane is not properly configured correctly for takeoff.
Activation is simultaneous with aural warning intermittent horn for TAKEOFF CONFIGURATION alert. (15.10)
CABIN ALTITUDE Warning Light
When will it illuminate?
What is it’s activation simultaneous with?
When does it extinguish?
- Illuminates when cabin altitude exceeds 10,000 feet
- Activation is simultaneous with aural warning intermittent horn for CABIN ALTITUDE alert.
- Extinguishes when cabin altitude descends below 10,000 feet.
(15. 10)
What causes this light to illuminate?
The GPWS monitors terrain proximity using a discrete function of the weather radar system. True or False?
-GPWS computer malfunction or power loss. (15.10)
-
-False, it uses an internal world wide data base. (15.20)
