How are doors labeled on the A320?

• A. 1L, 1R, 2L, 2R
• B. A, B, C, D
• C. Left Doors: L1 L2; Right Doors: R1 R2
• D. Door 1, Door 2, Door 3, Door 4

Answer: (A)

Doors on the A320 are identified by a number that shows the position along the fuselage, followed by a letter that shows which side of the aircraft. The standard labeling is 1L, 1R, 2L, 2R: door 1 is the forward pair, door 2 is the aft pair, with L or R indicating left or right. This convention keeps communications clear and matches how the doors are physically arranged and referenced in procedures and checklists. The other formats—using only letters, using L1/L2 for the left side and R1/R2 for the right, or listing Door 1, Door 2, etc.—do not convey the exact forward/aft position and can cause confusion.