Unstable approach — UAL870

UAL870 (United Airlines) was operating from YSSY to KOAK on 2026-08-19. SkyMeter detected a low approach-stability score at Metropolitan Oakland International Airport (KOAK) on runway 28R at 13:48 UTC. Trace data at the event: 1127 ft AGL, 163 kt GS. Approach stability score: 44/100. Scores below 50 occur on under 10% of approaches at this runway and indicate the v2 scorer flagged the approach as highly anomalous (three or more gates exceeded the runway's P90 envelope simultaneously). METAR at the time reported 3 kt wind, 3 kt crosswind component, 16,093 m visibility. The approach-stability score rates the final approach against stabilized-approach gates (glideslope, lateral deviation, descent rate, and IAS) at defined altitudes. A low score means one or more of those were outside the normal envelope for how the approach was flown. The score is graded by guidance type, so instrument approaches (ILS or an aligned straight-in) are held to the full gate set, while visual and pattern arrivals are surfaced only when the score is clearly low. The score is advisory and observational, a deviation measure, not an assertion of an accident. Detection algorithm and known limitations: see SkyMeter methodology.

• SECURITY6/8818 2016-03-23 15:38Z – 2027-10-18 11:03Z

  Special Notice, USA

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• SECURITY0/0367 2020-01-15 00:01Z – 2027-10-18 11:03Z

  USA, Wednesday, January 15, 2020 UTC

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• SPECIAL1/5060 2021-09-29 16:37Z – 2027-10-18 11:03Z SFC–999 ft

  USA, Wednesday, September 29, 2021 UTC

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• SECURITY2/8783 2022-02-28 19:15Z – 2027-10-18 11:03Z

  USA, Monday, February 28, 2022 UTC

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• SECURITY4/1789 2024-06-21 17:35Z – 2027-10-18 11:03Z

  USA, Friday, June 21, 2024 UTC

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• SECURITY4/2565 2024-06-24 16:00Z – 2027-10-18 11:03Z

  USA, Monday, June 24, 2024 UTC

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• SECURITY4/9433 2024-09-03 20:30Z – 2027-10-18 11:03Z

  USA, Tuesday, September 3, 2024 UTC

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• SECURITY5/6874 2025-03-01 05:00Z – 2027-03-31 05:00Z

  USA, Saturday, March 1, 2025 through Wednesday, March 31, 2027 UTC

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• SECURITY5/6914 2025-05-06 23:30Z – 2027-10-18 11:03Z SFC–6,000 ft

  South Padre Island, TX, Tuesday, May 6, 2025 Local

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• SECURITY5/7224 2025-09-03 15:10Z – 2027-10-18 11:03Z

  WASHINGTON, DC, Wednesday, September 3, 2025 UTC

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• SECURITY5/2809 2025-10-20 12:00Z – 2026-10-20 12:00Z SFC–2,000 ft

  Palm Beach, FL, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local

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• SECURITY5/6379 2025-10-29 14:30Z – 2027-10-29 14:30Z

  USA, Wednesday, October 29, 2025 through Friday, October 29, 2027 UTC

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• SECURITY5/3402 2025-11-06 20:00Z – 2027-10-18 11:03Z

  USA, Thursday, November 6, 2025 UTC

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• SECURITY5/3678 2026-01-01 05:00Z – 2027-01-01 05:59Z SFC–2,000 ft

  Brownsville, TX, Thursday, January 1, 2026 through Friday, January 1, 2027 Local

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• SECURITY5/3679 2026-01-01 05:00Z – 2027-01-01 05:59Z SFC–5,000 ft

  Brownsville, TX, Thursday, January 1, 2026 through Friday, January 1, 2027 Local

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• HAZARDS6/2698 2026-01-19 09:00Z – 2026-12-18 21:00Z SFC–5,000 ft

  VIEQUES, PR, Monday, January 19, 2026 through Friday, December 18, 2026 UTC

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• 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

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• SECURITY6/4143 2026-03-08 16:00Z – 2027-03-08 15:59Z SFC–200 ft

  ANDERSEN AFB, GU, Monday, March 9, 2026 through Tuesday, March 9, 2027 Local

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• SECURITY6/3366 2026-04-16 17:00Z – 2028-04-16 16:59Z

  USA, Thursday, April 16, 2026 through Sunday, April 16, 2028 UTC

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• SECURITY6/0299 2026-06-26 04:00Z – 2026-10-18 03:59Z SFC–5,000 ft

  Key West, FL, Friday, June 26, 2026 through Saturday, October 17, 2026 Local

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• SECURITY6/2652 2026-07-05 00:01Z – 2027-01-02 23:59Z SFC–500 ft

  Coyote Wells, CA, Saturday, July 4, 2026 through Saturday, January 2, 2027 Local

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• SECURITY6/2656 2026-07-05 00:01Z – 2027-01-02 23:59Z SFC–500 ft

  Coyote Wells, CA, Saturday, July 4, 2026 through Saturday, January 2, 2027 Local

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• SECURITY6/2657 2026-07-05 00:01Z – 2027-01-02 23:59Z SFC–500 ft

  Calexico, CA, Saturday, July 4, 2026 through Saturday, January 2, 2027 Local

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• SECURITY6/4812 2026-07-15 07:00Z – 2027-07-14 06:59Z SFC–17,999 ft

  El Centro, CA, Wednesday, July 15, 2026 through Tuesday, July 13, 2027 Local

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• HAZARDS6/7246 2026-07-21 05:00Z – 2026-08-21 03:00Z SFC–10,500 ft

  20NM N INDEPENDENCE, CA, Tuesday, July 21, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/7372 2026-07-21 13:38Z – 2026-08-22 03:00Z SFC–10,500 ft

  20NM N INDEPENDENCE, CA, Tuesday, July 21, 2026 through Saturday, August 22, 2026 UTC

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• SECURITY6/0708 2026-08-01 00:01Z – 2027-08-01 23:59Z SFC–400 ft

  Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC

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• HAZARDS6/1949 2026-08-05 12:00Z – 2026-08-19 04:00Z SFC–13,000 ft

  13NM SW CORTEZ, CO, Wednesday, August 5, 2026 through Wednesday, August 19, 2026 UTC

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• HAZARDS6/2489 2026-08-06 02:15Z – 2026-08-19 04:00Z SFC–9,000 ft

  27NM S BAKERSFIELD, CA, Thursday, August 6, 2026 through Wednesday, August 19, 2026 UTC

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• HAZARDS6/2435 2026-08-06 13:00Z – 2026-08-20 04:00Z SFC–13,500 ft

  13NM N SANTA FE, NM, Thursday, August 6, 2026 through Thursday, August 20, 2026 UTC

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• HAZARDS6/2568 2026-08-06 14:22Z – 2026-08-20 05:00Z SFC–5,000 ft

  BROWNSVILLE, TX, Thursday, August 6, 2026 through Thursday, August 20, 2026 UTC

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• HAZARDS6/2575 2026-08-06 15:06Z – 2026-08-20 05:00Z SFC–5,000 ft

  BROWNSVILLE, TX, Thursday, August 6, 2026 through Thursday, August 20, 2026 UTC

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• HAZARDS6/2842 2026-08-07 14:30Z – 2026-08-21 04:00Z SFC–13,500 ft

  13NM N SANTA FE, NM, Friday, August 7, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/3075 2026-08-08 19:30Z – 2026-08-22 04:00Z SFC–12,000 ft

  28NM NE LAS VEGAS, NM, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/3138 2026-08-09 17:20Z – 2026-08-22 15:00Z SFC–15,000 ft

  15NM SE BIG PINE, CA, Sunday, August 9, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/3157 2026-08-10 01:18Z – 2026-08-23 15:00Z SFC–7,500 ft

  8NM SE BIG SUR, CA, Monday, August 10, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/3249 2026-08-10 15:17Z – 2026-08-20 05:00Z SFC–5,000 ft

  BROWNSVILLE, TX, Monday, August 10, 2026 through Thursday, August 20, 2026 UTC

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• HAZARDS6/3405 2026-08-10 16:03Z – 2026-08-20 05:00Z SFC–5,000 ft

  BROWNSVILLE, TX, Monday, August 10, 2026 through Thursday, August 20, 2026 UTC

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• HAZARDS6/3480 2026-08-10 18:36Z – 2026-08-23 15:00Z SFC–7,500 ft

  8NM SE BIG SUR, CA, Monday, August 10, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/3712 2026-08-11 14:00Z – 2026-08-25 04:00Z SFC–8,000 ft

  18NM SW PRESCOTT, AZ, Tuesday, August 11, 2026 through Tuesday, August 25, 2026 UTC

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• HAZARDS6/4807 2026-08-13 03:30Z – 2026-08-20 03:30Z SFC–8,500 ft

  8NM SE BIG SUR, CA, Thursday, August 13, 2026 through Thursday, August 20, 2026 UTC

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• HAZARDS6/4894 2026-08-13 13:00Z – 2026-08-28 04:00Z SFC–15,000 ft

  8NM SE TRINIDAD, CO, Thursday, August 13, 2026 through Friday, August 28, 2026 UTC

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• HAZARDS6/4941 2026-08-13 16:00Z – 2026-08-20 03:00Z SFC–11,000 ft

  5NM S BIG BEAR LAKE, CA, Thursday, August 13, 2026 through Thursday, August 20, 2026 UTC

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• HAZARDS6/4962 2026-08-13 18:15Z – 2026-08-20 18:00Z SFC–2,000 ft

  YOUNGSPORT, TX, Thursday, August 13, 2026 through Thursday, August 20, 2026 UTC

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• UAS PUBLIC GATHERING6/3173 2026-08-13 21:00Z – 2026-08-23 07:00Z SFC–400 ft

  Lebanon, TN, Thursday, August 13, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/5070 2026-08-14 13:00Z – 2026-08-27 03:00Z SFC–8,500 ft

  8NM SE BIG SUR, CA, Friday, August 14, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/5409 2026-08-17 04:00Z – 2026-08-30 04:00Z SFC–13,500 ft

  13NM N SANTA FE, NM, Monday, August 17, 2026 through Sunday, August 30, 2026 UTC

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• HAZARDS6/5474 2026-08-17 07:41Z – 2026-08-22 00:15Z SFC–5,000 ft

  IMPERIAL, CA, Monday, August 17, 2026 through Saturday, August 22, 2026 UTC

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• SECURITY6/5452 2026-08-17 12:30Z – 2026-08-22 06:00Z SFC–2,500 ft

  MAYPORT, FL, Monday, August 17, 2026 through Saturday, August 22, 2026 Local

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• SECURITY6/5153 2026-08-18 05:00Z – 2026-08-20 09:30Z SFC–17,999 ft

  Macon, GA, Tuesday, August 18, 2026 through Thursday, August 20, 2026 Local

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• HAZARDS6/6216 2026-08-19 03:00Z – 2026-09-02 03:00Z SFC–13,500 ft

  13NM N SANTA FE, NM, Wednesday, August 19, 2026 through Wednesday, September 2, 2026 UTC

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• SECURITY6/6090 2026-08-19 13:30Z – 2026-08-19 21:00Z SFC–999 ft

  Destin, FL, Wednesday, August 19, 2026 Local

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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