Examen de ATR 42
Emergency Battery is empty
When ground handling bus is supplied by hot main battery bus and main battery is emptying even if the battery toggle switch is “off”
Cargo door control panel is inoperative.
When the associated condition lever is on fuel shut-off or feather position.
When micro-switches are damaged
When external power in connected.
DC emergency bus
DC standby bus
Main battery
No alerts will be available
Only central panel alerts will be available
Local alert light will still be operative and lever 3 alerts are normally processed
Hydraulic failures
Autopilot messages
Fire warnings
Stall alert is always 7.5 deg.
During and after take-off: stall alert is 8.5 deg. Until 10 min. elapsed after lift-off or when flaps retracted
Protection of 8.5 deg. is only for 10 seconds after take-off
Speed is lower than 125 knots
Ground cooling fans do not work in flight
When flaps 15 are selected
Only The electro-pneumatic valve is operative
The pneumatic valve is in closed position all the time.
The pneumatic valve is slaved to the electro-pneumatic one
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