Flight #SU1492 took off from Sheremetyevo Airport at 15:03 UTC time (18:03 local time).

15:11 squawk changed to 7600 (radio failure)

15:25 squawk changed to 7700 (emergency)

15:30 ADS-B signal becomes bad (inconsistent) below 600 feethttps://t.co/mX6VN5WwwC pic.twitter.com/kOlds4WHjr

— Flightradar24 (@flightradar24) May 5, 2019