What does the illumination of the SYS ON light mean?
The signal has been sent to release the oxygen mask doors
Does this mean that the masks have all deployed?
No - some masks may have to be deployed manually
What causes automatic deployment of the masks?
Cabin Altitude reaching approximately 14,000 feet
How does the passenger oxygen system work?
Chemical oxygen generators for approximately 15 minutes
What happens when a pilot pushes the CREW SUPPLY PB?
Valve opens to supply low pressure crew oxygen
Why is the GND CTL PB selected to ON during preflight?
To record preflight activities in the cockpit
If the PB was not selected ON, how would the system work in automatic mode?
ON for 5 minutes after electrical power is supplied to the aircraft
At least one engine is operating, stops 5 min after last engine shut down.
What allows the cabin PA’s to be recorded?
ACP 3 PA Volume knob out and in 12 o’clock position
What is the significance of the red FAULT illuminating on the RAT & EMER GEN
light?
AC BUS1 and AC BUS 2 are lost and the RAT is not supplying electrical power
When would it normally illuminate?
During the 8-second RAT deployment
How can the RAT be deployed?
Manually by pushing MAN ON or RAT MAN ON, or Automatically by the loss of both AC
BUS 1 and AC BUS 2
What does the RAT supply?
Blue Hydraulic system and the emergency electrical generator
What buses are powered by the emergency electrical generator?
AC ESS and AC ESS Shed
DC ESS and DC ESS shed
What is the difference between the Automatic RAT deployment and RAT deployed by
pressing the RAT MAN ON on the HYD panel?
RAT MAN ON supplies Blue Hydraulic PSI only, no electrical generation
After deploying the RAT by pressing the RAT MAN ON pushbutton on the HYD panel
and it became necessary to also extract electrical power, how it be accomplished?
By pressing the MAN ON pushbutton on the EMER ELEC PWR
What would cause the GEN 1 LINE SMOKE light to illuminate?
Smoke detected in the avionics ventilation ducting
ECAM procedure directs the GEN 1 LINE PB to OFF. What is accomplished?
Gen 1 line contactor opens (white OFF light illuminates)
AC BUS 1 powered by GEN 2 through the Bus Tie Contactor
Gen 1 powers one fuel pump directly in each wing tank
What type of flight control system does the A320 family aircraft utilize?
Fly-By-Wire System
How are they controlled and activated?
Electrically and Hydraulically, respectively
How is NORMAL LAW indicated on the PFD?
Green double markers
How is ALTERNATE LAW indicated on the PFD?
Amber X’s (indicating lack of NORMAL LAW protections)
How is DIRECT LAW indicated on the PFD?
AMBER “USE MANUAL PITCH TRIM”
Amber X’s (indicating lack of NORMAL LAW protections)
How is MECHANICAL BACKUP indicated on the PFD?
RED “MAN PITCH TRIM ONLY”
Amber X’s (indicating lack of NORMAL LAW protections)
When operating in NORMAL LAW in FLIGHT mode, what does the side stick command for pitch and roll?
Pitch – G load
Bank – Roll Rate