EQUIP COOLING PANEL Flashcards
1
Q
EQUIP COOLING Switch
- 2 switches / 2 positions -
A
- 2 fan sets: supply and exhaust
For BOTH SUPPLY and EXHAUST:
-
NORM:
- normal cooling supply / exhaust fan activated
-
ALTN:
- alternate coolin supply / exhaust fan activated
2
Q
OFF Light - Equip Cooling
What does the amber ‘off’ light indicate? (1sp)
A
[1sp - not enough airflow in the avionics compartment]
Illuminated (Amber):
- NO AIRFLOW from selected cooling supply / exhaust fan
- low airflow in fan duct due to fan failure
- sensor or filter is dirty
- OEV fails (EXHAUST OFF light ONLY)
* if SUPPLY [OFF] illuminates in flight w/in 30 min you could lose the Capts and Lower DU’s
* if EXHAUST [OFF] illuminates in flight w/in 30 min you could lose the FO’s and upper DU’s
- if there is an over temp on the ground it triggers an crew call horn in the nose wheel well