Rejected takeoff — UAL1232

KDEN · 34R

2026-04-23 15:45 UTC· KDEN KBOS· UNITED AIRLINES INC· A21N

UAL1232 (United Airlines) was operating from KDEN to KBOS on 2026-04-23. SkyMeter detected a rejectedtakeoff at Denver International Airport (KDEN) on runway 34R at 15:45 UTC. Trace data at the event: 5360 ft AGL, 77 kt GS. METAR at the time reported 12 kt wind, 12 kt crosswind component, 16,093 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • SECURITY5/2811 2025-10-20 12:00Z – 2026-10-20 12:00Z SFC–1,000 ft

    NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local

    View FAA NOTAM →

SkyMeter cross-referenced this flight against FAA-published TFRs that were active during its window and within its geographic bounding box. Overlap doesn't necessarily mean violation — the aircraft may have been outside the TFR’s precise polygon or flying under air-traffic-control coordination.

Pilot review data

  • Runway 34R
  • 5360 ft AGL at event
  • 77 kt ground speed
  • 0 fpm vertical
  • 12 kt wind
  • 12 kt crosswind component
  • 16,093 m visibility
  • KDEN 161930Z AUTO 04017KT 10SM CLR 26/07 A3024 RMK T02600070 MADISHF

Flight context

  • UAL1232
  • United Airlines
  • A21N
  • KDEN → KBOS
  • 2026-04-23 15:45 UTC
  • KDEN runway 34R

All events on this flight

Rejected takeoff 15:45:31 UTC · KDEN runway 34R · 5,360 ft AGL · 77 kt GS
Rejected takeoff 15:45:31 UTC · KDEN runway 34R · 5,360 ft AGL · 77 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· KDEN