6.2021 FAULTS Flashcards
What does a FAULT light in the battery pb indicate?
Charging current for the corresponding battery is outside normal limits.
With the FAULT light illuminated in the battery pb is the battery contactor open or closed?
Open
What does a FAULT light in a SEC pb mean?
The SEC is inoperative
What does the red FAULT light on the RAT & EMER GEN pb indicate?
The EMER GEN is not supplying power to AC and DC Essential busses.
What does an amber FAULT light in the SYS pb indicate on the GPWS panel?
On ground: loss of all GPWS basic modes.
In flight: Any failure of GPWS basic modes.
An amber FAULT light in the APU MASTER switch pb indicates?
An APU auto shutdown has occurred.
What does an amber FAULT light in the APU BLEED pb mean?
An APU Bleed leak
What does an amber FAULT light in the Cabin Pressure MODE SEL pb indicate?
Both automatic pressure controllers are faulty.
What does a FAULT light in the ENG ANTI ICE pb indicate?
Switch/anti-ice valve disagreement
What does the amber FAULT light in the WING ANTI ICE pb indicate?
- Position of the anti-icing control valve is not in the required position.
- Low pressure is detected.
What would cause an amber PACK FAULT light to illuminate?
- Pack overheat
* switch position disagreement with pack flow control valve
What causes the amber FAULT light on the ENG BLEED pb?
- Engine bleed over temperature
- Engine bleed over pressure
- Bleed leak detected
- Switch / valve position disagreement
What does the amber HOT AIR FAULT light indicate?
Duct overheat. The Hot Air valve closes automatically.
What does the amber FAULT light in the GALLEY pb indicate?
At least one generator load is above 100% rated output.
What does a FAULT on an ENG GEN pb indicate?
- A fault is detected by the GCU.
* The pb is selected ON, but the associated engine is not operating