Doors Flashcards
How is low pressure in the door assist bottle indicated?
Low pressure in the door assist bottle is transmitted to CIDS and displayed on the FAP.
If the door slide is armed, what happens when the outer door handle is used?
The outer door handle will disarm the door slide.
What does a red flashing light on the inner door indicate?
A red flashing light on the inner door indicates that the cabin is still pressurized.
Which hydraulic system operates the cargo doors?
The cargo doors use the yellow hydraulic system.
What happens if the cargo door handle is not fully open?
If the cargo door handle is not fully open, the pump is inhibited.
What can you access when the cargo door locking handle is in the unlocked position?
When the cargo door locking handle is in the unlocked position, it gives access to the latching handle.
How is an unlocked cargo door indicated?
An indicator flag extrudes from the door skin if the locking system is not in the fully locked position.
How many actuators are on the cargo door?
There is a single actuator on the cargo door.
What is the function of the balance mechanism on the bulk cargo door?
The balance mechanism reduces the force needed when opening the door.
How is the bulk cargo door locked in place when fully open?
When the bulk cargo door is fully open, closing the latch will lock the door in place.
What feature is included in the cockpit door for pressure regulation?
The cockpit door is fitted with a decompression panel.
What is the purpose of the cockpit door backup system?
The cockpit door backup system, installed on a panel in the cockpit, is used to de-energize the strikers.
What system provides electrical indications related to the doors?
The Door and Escape Slide Control System (DSCS) provides electrical indications related to the doors.
What indications appear on the SD when the PAX door is locked and the slide is armed?
The door indication on the SD will be green, and a green “SLIDE” will appear beside the indication.
What are the three systems that have proximity sensors on the forward and aft cargo doors?
The forward and aft cargo doors have three proximity sensors that are part of:
1- The door indicating and warning system.
2- The cargo door electrical control system.
3- The residual cabin pressure detection and indication system.
How is residual cabin pressure indicated on the cargo doors?
A light beside the cargo door handle warns of residual cabin pressure.
What unit monitors all door proximity switches, and what larger system is it part of?
The Proximity Switch Control Unit (PSCU) monitors all door proximity switches and is part of the Door and Escape Slide Control Unit (DSCU).
