It appears to be a 'security' issue:
Results from https://www.ExpertFlyer.com
Code:
Flight Status Search:
Departing on 14/07/22
Flying BA flight 139
Flight Status Depart Location Depart Date Reliability Arrive Location Arrive Date
LHR Scheduled: 14/07/22 10:15 BOM Scheduled: 14/07/22 23:55
BA 139 Scheduled Term: 5 Estimated: 14/07/22 10:50 84% / 23m Term: 2 Estimated:
Gate: B44 Actual: Gate: Actual:
Comments:
"DOBA139/14JUL
* OPERATIONAL FLIGHT INFO * BA 139 0 TH 14JUL22
CITY INFO HOUR (LOCAL)
LHR ESTIMATED TIME OF DEPARTURE 1050
DELAY ZO
LEFT THE GATE 1104
AIRCRAFT RETURNING TO RAMP 1201
DELAY ZD
ESTIMATED TIME OF ARRIVAL 0145 BOM
*1A PLANNED FLIGHT INFO* BA 139 0 TH 14JUL22
APT ARR DY DEP DY CLASS/MEAL EQP GRND EFT TTL
>"