Go-around — UAL721

KIAD · 01C

2026-09-04 19:46 UTC· KBOS → KIAD· UNITED AIRLINES INC· B739

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UAL721 (United Airlines) was operating from KBOS to KIAD on 2026-09-04. SkyMeter detected a go-around at Washington Dulles International Airport (KIAD) on runway 01C at 19:46 UTC. Trace data at the event: 596 ft AGL, 161 kt GS. METAR at the time reported 5 kt wind, 16,093 m visibility. A go-around is a discontinued landing approach in which the pilot adds power and climbs back to a safe altitude before re-attempting the approach or proceeding to an alternate. It is a routine safety response, not an emergency, and is taught as the standard reaction to any unstable approach. 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 →
  • SECURITY6/7002 2026-08-24 13:00Z – 2026-09-13 07:00Z SFC–1,000 ft

    Flushing, NY, Monday, August 24, 2026 through Sunday, September 13, 2026 Local

    View FAA NOTAM →
  • UAS PUBLIC GATHERING6/7351 2026-08-27 12:00Z – 2026-10-13 03:00Z SFC–400 ft

    Timonium, MD, Thursday, August 27, 2026 through Tuesday, October 13, 2026 UTC

    View FAA NOTAM →
  • SECURITY6/0807 2026-09-04 19:30Z – 2026-09-08 00:01Z SFC–2,000 ft

    Morristown, NJ, Friday, September 4, 2026 through Monday, September 7, 2026 Local

    View FAA NOTAM →
  • SECURITY6/9208 2026-09-04 19:30Z – 2026-09-06 03:59Z SFC–400 ft

    East Rutherford, NJ, Friday, September 4, 2026 through Saturday, September 5, 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 01C
  • 596 ft AGL at event
  • 161 kt ground speed
  • 0 fpm vertical
  • 5 kt wind
  • 0 kt crosswind component
  • 16,093 m visibility
  • KIAD 162052Z 20005KT 10SM FEW250 29/19 A3029 RMK AO2 SLP254 T02890189 56018

Flight context

  • UAL721
  • United Airlines
  • B739
  • KBOS → KIAD
  • 2026-09-04 19:46 UTC
  • KIAD runway 01C

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· KIAD