Return to field — ACA853

EGLL · 27R

2026-05-02 07:34 UTC· EGLL EGLL· Air Canada· B77W

ACA853 (Air Canada) was operating from EGLL to CYYZ (Lester B. Pearson International Airport) on 2026-05-02. SkyMeter detected a return to field at London Heathrow Airport (EGLL) on runway 27R at 07:34 UTC. Peak cruise altitude FL340, turnaround area near Pilning, GB. METAR at the time reported 0 kt wind, 9,994 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.

Pilot review data

  • Runway 27R
  • 34017 ft AGL at event
  • 510 kt ground speed
  • 0 fpm vertical
  • 0 kt wind
  • 0 kt crosswind component
  • 9,994 m visibility
  • EGLL 150550Z AUTO 01008KT 340V050 9999 NCD 20/12 Q1017

Flight context

  • ACA853
  • Air Canada
  • B77W
  • EGLL → EGLL
  • 2026-05-02 07:34 UTC
  • EGLL runway 27R

All events on this flight

Return to field 07:34:53 UTC · EGLL runway 27R · 34,017 ft AGL · 510 kt GS
Return to field 07:34:53 UTC · EGLL runway 27R · 34,017 ft AGL · 510 kt GS
Squawk 7700 transmission 08:16:01 UTC · · 33,949 ft AGL · 471 kt GS
Squawk 7700 transmission 08:16:01 UTC · · 33,949 ft AGL · 471 kt GS
Squawk 7700 transmission 08:16:01 UTC · · 33,949 ft AGL · 471 kt GS
Squawk 7700 transmission 08:16:01 UTC · · 33,949 ft AGL · 471 kt GS
Squawk 7700 transmission 08:16:01 UTC · · 33,949 ft AGL · 471 kt GS
Squawk 7700 transmission 08:16:01 UTC · · 33,949 ft AGL · 471 kt GS
Squawk 7700 transmission 08:16:01 UTC · · 33,949 ft AGL · 471 kt GS
Squawk 7700 transmission 08:16:01 UTC · · 33,949 ft AGL · 471 kt GS

Automated analysis. Events shown on this page (such as go-around, unstable approach, or runway events) are heuristic classifications produced by algorithms from publicly broadcast ADS-B data. They are intended to surface flights of interest for further review — they are not findings of fact, and they do not determine pilot fault, regulatory compliance, or the cause of any occurrence. Coverage gaps and sensor noise can affect accuracy. Only the relevant civil aviation authority or accident investigation body can make official determinations. How we detect events · Dispute or correct this data

SkyMeter · trace data observed via ADS-B· EGLL