Squawk 7600 transmission — UAL583

UAL583 (United Airlines) was operating from KSFO to KMCO on 2026-06-04. SkyMeter recorded a 7600 transponder transmission at 17:53 UTC. Code 7600 indicates a lost-comms / NORDO state; brief transmissions are often transient radio or transponder issues that resolve without crew action. Trace data at the event: 36916 ft AGL, 465 kt GS. Approach stability score: 78/100. Scores in this band are observed on roughly 25% of approaches at this runway: one or more gates outside the per-runway tightest envelope, but still inside the typical operating range. METAR at the time reported 6 kt wind, 5 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

• SECURITY6/0091 2026-01-04 00:01Z – 2026-07-04 23:59Z SFC–500 ft

  Coyote Wells, CA, Saturday, January 3, 2026 through Saturday, July 4, 2026 Local

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• SECURITY6/0092 2026-01-04 00:01Z – 2026-07-04 23:59Z SFC–500 ft

  CALEXICO, CA, Saturday, January 3, 2026 through Saturday, July 4, 2026 Local

  View FAA NOTAM →
• SECURITY6/4165 2026-02-14 07:00Z – 2026-08-15 06:59Z SFC–400 ft

  Nogales, AZ, Saturday, February 14, 2026 through Friday, August 14, 2026 Local

  View FAA NOTAM →
• SECURITY6/4160 2026-02-14 08:00Z – 2026-08-15 06:59Z SFC–400 ft

  Chula Vista, CA, Saturday, February 14, 2026 through Friday, August 14, 2026 Local

  View FAA NOTAM →
• SECURITY6/4240 2026-03-08 08:00Z – 2026-11-01 07:00Z SFC–180 ft

  SAN ANGELO, TX, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local

  View FAA NOTAM →
• HAZARDS6/2366 2026-05-22 06:00Z – 2026-06-05 04:00Z SFC–10,000 ft

  12NM S PRESCOTT, AZ, Friday, May 22, 2026 through Friday, June 5, 2026 UTC

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• HAZARDS6/2573 2026-05-25 15:00Z – 2026-06-06 03:00Z SFC–8,000 ft

  32NM SW SANTA BARBARA, CA, Monday, May 25, 2026 through Saturday, June 6, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/2830 2026-05-25 15:45Z – 2026-06-11 16:00Z SFC–5,000 ft

  GARDEN GROVE, CA, Monday, May 25, 2026 through Thursday, June 11, 2026 UTC

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• HAZARDS6/2866 2026-05-25 22:04Z – 2026-06-08 03:00Z SFC–13,000 ft

  24NM NE DOUGLAS, AZ, Monday, May 25, 2026 through Monday, June 8, 2026 UTC

  View FAA NOTAM →
• SECURITY6/2644 2026-05-27 11:00Z – 2026-06-12 22:00Z SFC–400 ft

  Brunswick, GA, Wednesday, May 27, 2026 through Friday, June 12, 2026 Local

  View FAA NOTAM →
• HAZARDS6/3292 2026-05-27 17:20Z – 2026-06-10 00:15Z SFC–2,000 ft

  22NM SW TALLAHASSEE, FL, Wednesday, May 27, 2026 through Wednesday, June 10, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/4403 2026-05-31 14:00Z – 2026-06-14 04:00Z SFC–11,000 ft

  18NM NE TUCSON, AZ, Sunday, May 31, 2026 through Sunday, June 14, 2026 UTC

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• HAZARDS6/4313 2026-05-31 14:00Z – 2026-06-14 03:00Z SFC–8,000 ft

  13NM NW CARLSBAD, NM, Sunday, May 31, 2026 through Sunday, June 14, 2026 UTC

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• SECURITY6/3954 2026-06-01 00:00Z – 2026-07-20 23:59Z

  STILLWATER, OK, Monday, June 1, 2026 through Monday, July 20, 2026 UTC

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• SECURITY6/3996 2026-06-01 00:00Z – 2026-07-20 23:59Z

  OKLAHOMA CITY, OK, Monday, June 1, 2026 through Monday, July 20, 2026 UTC

  View FAA NOTAM →
• SECURITY6/4116 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  LOUISVILLE, KY, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/3979 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  ATLANTA, GA, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

  View FAA NOTAM →
• SECURITY6/3980 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  CHATTANOOGA, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/3990 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  CHATTANOOGA, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/3991 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  MARIETTA, GA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4114 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  LOUISVILLE, KY, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4030 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  AUSTIN, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/3997 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  NORMAN, OK, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4002 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  FORT WORTH, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4008 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  FRISCO, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4009 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  FRISCO, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4019 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  IRVING, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4022 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  OKLAHOMA CITY, OK, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4025 2026-06-01 05:00Z – 2026-07-21 04:59Z

  DENTON, TX, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

  View FAA NOTAM →
• SECURITY6/3999 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  ARLINGTON, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/3952 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  Stillwater, OK, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4141 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  Tulsa, OK, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4059 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  HOUSTON, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4121 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  Nashville, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4119 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  NASHVILLE, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4068 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  HOUSTON, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4097 2026-06-01 05:00Z – 2026-07-21 04:59Z

  SAN ANTONIO, TX, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

  View FAA NOTAM →
• SECURITY6/4000 2026-06-01 05:00Z – 2026-07-21 04:59Z

  MANSFIELD, TX, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

  View FAA NOTAM →
• SECURITY6/3966 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  Mesa, AZ, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4061 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  BERKLEY, CA, Monday, June 1, 2026 through Tuesday, July 21, 2026 Local

  View FAA NOTAM →
• SECURITY6/4060 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  Oakland, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4054 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  San Jose, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4182 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  Irvine, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4183 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  San Diego, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4189 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  Los Angeles, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4192 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  Santa Barbara, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4197 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  GOLETA, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4198 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  IRVINE, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4201 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  Dana Point, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4202 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  San Diego, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4203 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  San Diego, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4204 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  Santa Clara, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/4052 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  San Jose, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

  View FAA NOTAM →
• SECURITY6/3948 2026-06-01 07:00Z – 2026-07-21 06:59Z

  MESA, AZ, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

  View FAA NOTAM →
• SECURITY6/4380 2026-06-01 13:00Z – 2026-06-06 06:00Z SFC–2,500 ft

  MAYPORT, FL, Monday, June 1, 2026 through Saturday, June 6, 2026 Local

  View FAA NOTAM →
• HAZARDS6/5656 2026-06-04 16:19Z – 2026-06-18 00:15Z SFC–2,000 ft

  22NM SW TALLAHASSEE, FL, Thursday, June 4, 2026 through Thursday, June 18, 2026 UTC

  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.

All events on this flight

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