Exterior Door Annunciations

llluminated (amber) – Related door is not closed and locked.

Overwing Exit Annunciations

llluminated (amber) –

  • Related overwing exit is not closed and locked
  • Related flight lock failed to engage when commanded locked.

The overwing emergency exits lock when:

  • Three of the four Entry / Service doors are closed and
  • Either engine is running and
  • The airplane air / ground logic indicates that the airplane is in the air or both throttles are advanced.

The overwing emergency exits unlock when any one of the above conditions is not met or DC power is lost.

doors_l.gif (16860 bytes)                                  

BACK