FlyerTalk Forums - View Single Post - Explanation Required: ATA (actual time of arr) and ATD (actual time of dep)
Thread: Explanation Required: ATA (actual time of arr) and ATD (actual time of dep)
View Single Post
Old Dec 8, 2017 | 3:20 pm
  #9  
jrl767
FlyerTalk Evangelist
20 Countries Visited
2M
Community Builder
15 Years on Site
 
Join Date: Nov 2009
Location: SEA — the REAL Washington; occasionally in the other Washington (DCA area)
Programs: AS MVPG 100K (Atmos Titanium) / 0.5MM; DL fallen PM (1.58MM = “Complimentary Annual GM”); AA Gold
Posts: 24,364
Originally Posted by ihightower
... why the use of wrong terminology to identify the Flight at Gate as ATA instead of Chocks On (or On Blocks) time as the accurate description of it ...
first of all, neither is "wrong"; they're just used in different contexts

as others have mentioned, "OUT"/"IN" (chocks pulled/placed or parking brake released/set, respectively) are terms that the airline uses to gauge operational metrics (stuff that the passengers care about, and stuff that often dictates aspects of gate agents' annual performance assessments) ... "OFF"/"ON" are the actual takeoff and landing times (wheels off/on ground) that impact things like periodic aircraft maintenance requirements
jrl767 is offline  
Reply