FlyerTalk Forums - View Single Post - Discrepancies between posted and actual arrival/departure times?
Old Apr 1, 2016 | 8:33 am
  #14  
doobierw
 
Join Date: Jan 2003
Posts: 1,660
Originally Posted by RobOnLI
It is all up to the gate agent and when they type it into the computer.

-RM
This is incorrect. Our out/in times (departed/arrived) are generated onboard the aircraft and are automatically/immediately uplinked into the flight info system when the trigger event occurs.

Our 'out' time for flight ops (internal metric) occurs when all doors are closed, and the parking brake is released. A separate 'departure' time is generated which is based on when wheel spin first occurs. This is the time that you will see generated as 'departure time' when tracking a flight.

I'm a little less certain when the 'In' (arrival) occurs. It used to be that when a door was opened, the system looked at the time that the parking brake was set for the last time. It either still does it that way, or the 'In' event occurs when the parking brake has been set and a door is opened.....using the actual time the door was opened....not when the parking brake was set. I believe it is the former....not the latter, but not 100% certain of that anymore.

DRW
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