Doors

Question 1

Which doors are monitored, but not shown on

the doors SD page?

Answer 1

The Doors and Slides Control System (DSCS) main functions of the DSCS are to:

• Monitor and display on the DOOR/OXYGEN SD page the status of: The passenger doors, The escape slides, The cargo doors, The cockpit escape hatch, The external access door to the forward avionics bay.
• Monitor the status of the two internal access doors to the forward and aft avionics bays.

Question 2

CABIN PRESSURE WARNING LIGHT?

Answer 2

Flashes red, when: the aircraft is on ground, the related slide is disarmed,the differential cabin pressure is above 0.036 PSI, both engines are OFF

Question 3

If the Cockpit Door Locking System fails, what

happens?

Answer 3

The CDLS electrically locks and unlocks the cockpit door.

If the CDLS fails, the door unlocks but remains closed.

Question 4

Cockpit door toggle switch?

Answer 4

CKPT DOOR SW
Unlocks the door, as long as the flight crew maintains the UNLOCK position.
When the flight crew releases the switch, it goes back to the NORM position.

Question 5

Bulk Cargo Door?

Answer 5

The bulk cargo door is on the left hand side of the aircraft.
The ground crew can manually open or close the bulk cargo door with one of the door handles that are in the interior and on the exterior of the aircraft

Question 6

What hydraulic systems are used to close and

lock the cargo doors?

Answer 6

Both the forward and aft cargo doors open outward and upward. They are mechanically locked, and
hydraulically operated by the yellow hydraulic system.