ATA 52 Doors

Question 1

Are cabin door seals repairable, or must a damaged seal be replaced?

Answer 1

Repairable if there’s not too much damage.

Question 2

How is a cabin entry door supported when the aircraft is unpressurized?

Answer 2

The door hinges

Question 3

What is the purpose of the coil springs on the frame torque tube?

Answer 3

Helps the operator to begin to open or close the door
Help snub the door at the end of travel

Question 4

Which door is this coil spring arrangement installed on?

Answer 4

FWD passenger door

Question 5

What causes the (overwing) emergency exit door to move to open?

Answer 5

Pressure vent panel/handle combination

Question 6

When are the emergency exit doors locked?

Answer 6

Takeoff roll

Question 7

The emergency exit flight lock is fail-safe to ______________the door.

Answer 7

unlock

Question 8

The logic to lock the emergency exit door comes from the _____ and the
_____________ relays.

Answer 8

Flight lock logic in the PSEU, R742 relay, and either R737 or R738 engine running relays.

Question 9

Can a cargo door be opened from the inside?

Answer 9

Yes

Question 10

The ram air access panel doors are supported on hinge. TRUE or FALSE.

Answer 10

FALSE

Question 11

How is the E&E bay door supported when being opened or closed?

Answer 11

The rollers and tracks

Question 12

How is cockpit security provided if the security locking system has failed?

Answer 12

deadbolt

Question 13

The cockpit door lock is energized to _____________.

Answer 13

lock.

Question 14

The cockpit door lock is de-energized to__________.

Answer 14

Un-locked

Question 15

You closed the cockpit door, it locked, you do not know the code, how do you get
in?

Answer 15

De-energize the aircraft.

Question 16

What does the EQUIP light on the doors light panel indicate?

Answer 16

There’s a door that is open

Question 17

Door warning indication is provided by proximity sensors and the ______.

Answer 17

Door warning amber lights

Question 18

What is the wind limitation for opening and closing the doors on the MAX?

Answer 18

40 knots, can be latched open up to 65 knots

Question 19

Why does the flight lock solenoid energize?

Answer 19

To ensure the emergency exit door does not open during takeoff and in flight automatically.

Question 20

What’s the proper way to open the E and E door?

Answer 20

Unlatch and push upwards-GENTLY, then move UPWARDS and to the RIGHT

Question 21

The EQUIP light on the P-5 overhead panel is common to which two doors?

Answer 21

Forward Equipment and E and E bay.