Which model has 4L as its door safety FA?

Which model has 4L as its door safety FA?

• A. 767D-400 ER
• B. 767K-300 ER
• C. 767z-300ER
• D. None

Answer: (A)

The number with a left-side door and a four indicates a stretched, longer version of the aircraft that adds an extra exit. On the Boeing 767-400ER, Boeing added a fourth pair of doors (4L on the left, 4R on the right) to the fuselage, so the door labeled 4L exists only on that model. The 767-300ER and earlier variants do not have a 4L door; their aft exits are numbered 3L/3R. Therefore, the door safety designation for 4L corresponds specifically to the 767-400ER.

The number with a left-side door and a four indicates a stretched, longer version of the aircraft that adds an extra exit. On the Boeing 767-400ER, Boeing added a fourth pair of doors (4L on the left, 4R on the right) to the fuselage, so the door labeled 4L exists only on that model. The 767-300ER and earlier variants do not have a 4L door; their aft exits are numbered 3L/3R. Therefore, the door safety designation for 4L corresponds specifically to the 767-400ER.