Unstable approach — UAL2071
US-3224 · 9W2026-07-28 19:35 UTC· KSFO → ?· UNITED AIRLINES INC· B739
UAL2071 (United Airlines) had departed KSFO on 2026-07-28. SkyMeter detected a low approach-stability score at US-3224 (US-3224) on runway 9W at 19:35 UTC. Trace data at the event: 1102 ft AGL, 163 kt GS. Approach stability score: 40/100. 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. 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.
Active FAA TFR during this flight
Source: FAA TFR archive (hourly snapshot)- 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 → - SECURITY6/5797 2026-04-03 00:01Z – 2026-09-28 23:59Z SFC–400 ft
SACRAMENTO, CA, Thursday, April 2, 2026 through Monday, September 28, 2026 Local
View FAA NOTAM → - 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
View FAA NOTAM → - 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
View FAA NOTAM → - 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
View FAA NOTAM → - HAZARDS6/5450 2026-07-14 04:00Z – 2026-07-29 04:00Z SFC–16,500 ft
19NM NE OURAY, CO, Tuesday, July 14, 2026 through Wednesday, July 29, 2026 UTC
View FAA NOTAM → - HAZARDS6/5451 2026-07-14 04:00Z – 2026-07-29 04:00Z SFC–16,500 ft
1NM N OURAY, CO, Tuesday, July 14, 2026 through Wednesday, July 29, 2026 UTC
View FAA NOTAM → - 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
View FAA NOTAM → - HAZARDS6/6360 2026-07-17 04:00Z – 2026-07-30 04:00Z SFC–15,000 ft
9NM SW PUEBLO, CO, Friday, July 17, 2026 through Thursday, July 30, 2026 UTC
View FAA NOTAM → - HAZARDS6/6395 2026-07-17 12:00Z – 2026-07-30 04:00Z SFC–13,000 ft
14NM N CORTEZ, CO, Friday, July 17, 2026 through Thursday, July 30, 2026 UTC
View FAA NOTAM → - HAZARDS6/6186 2026-07-17 13:00Z – 2026-07-30 03:00Z SFC–11,000 ft
21NM NE DOUGLAS, AZ, Friday, July 17, 2026 through Thursday, July 30, 2026 UTC
View FAA NOTAM → - HAZARDS6/6359 2026-07-17 14:00Z – 2026-07-31 03:00Z SFC–15,500 ft
5NM E BEAVER, UT, Friday, July 17, 2026 through Friday, July 31, 2026 UTC
View FAA NOTAM → - HAZARDS6/6567 2026-07-18 13:00Z – 2026-08-01 04:00Z SFC–16,000 ft
16NM W MONTICELLO, UT, Saturday, July 18, 2026 through Saturday, August 1, 2026 UTC
View FAA NOTAM → - HAZARDS6/6569 2026-07-18 14:00Z – 2026-07-31 03:00Z SFC–15,500 ft
5NM E BEAVER, UT, Saturday, July 18, 2026 through Friday, July 31, 2026 UTC
View FAA NOTAM → - HAZARDS6/6736 2026-07-19 12:00Z – 2026-08-01 03:00Z SFC–16,000 ft
16NM W MONTICELLO, UT, Sunday, July 19, 2026 through Saturday, August 1, 2026 UTC
View FAA NOTAM → - SECURITY6/6491 2026-07-20 07:01Z – 2026-09-16 06:59Z SFC–1,499 ft
Concord, CA, Monday, July 20, 2026 through Tuesday, September 15, 2026 Local
View FAA NOTAM → - HAZARDS6/6876 2026-07-20 13:00Z – 2026-08-03 04:00Z SFC–16,000 ft
7NM SW DEL NORTE, CO, Monday, July 20, 2026 through Monday, August 3, 2026 UTC
View FAA NOTAM → - 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
View FAA NOTAM → - 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
View FAA NOTAM → - HAZARDS6/7909 2026-07-22 18:11Z – 2026-08-08 04:00Z SFC–12,500 ft
20NM N INDEPENDENCE, CA, Wednesday, July 22, 2026 through Saturday, August 8, 2026 UTC
View FAA NOTAM → - HAZARDS6/8008 2026-07-23 12:00Z – 2026-08-01 03:00Z SFC–12,000 ft
16NM W MONTICELLO, UT, Thursday, July 23, 2026 through Saturday, August 1, 2026 UTC
View FAA NOTAM → - HAZARDS6/8010 2026-07-23 12:00Z – 2026-08-12 04:00Z SFC–16,500 ft
19NM NE OURAY, CO, Thursday, July 23, 2026 through Wednesday, August 12, 2026 UTC
View FAA NOTAM → - HAZARDS6/8012 2026-07-23 12:00Z – 2026-08-12 04:00Z SFC–16,500 ft
1NM N OURAY, CO, Thursday, July 23, 2026 through Wednesday, August 12, 2026 UTC
View FAA NOTAM → - HAZARDS6/8554 2026-07-26 12:00Z – 2026-08-10 03:00Z SFC–12,000 ft
16NM W MONTICELLO, UT, Sunday, July 26, 2026 through Monday, August 10, 2026 UTC
View FAA NOTAM → - HAZARDS6/8779 2026-07-26 18:03Z – 2026-08-02 01:30Z SFC–1,300 ft
16NM NE LAKE CITY, FL, Sunday, July 26, 2026 through Sunday, August 2, 2026 UTC
View FAA NOTAM → - SECURITY6/8418 2026-07-27 12:30Z – 2026-08-01 06:00Z SFC–2,500 ft
MAYPORT, FL, Monday, July 27, 2026 through Saturday, August 1, 2026 Local
View FAA NOTAM → - HAZARDS6/8945 2026-07-27 14:57Z – 2026-08-09 04:00Z SFC–5,500 ft
SONORA, CA, Monday, July 27, 2026 through Sunday, August 9, 2026 UTC
View FAA NOTAM → - HAZARDS6/9111 2026-07-28 14:00Z – 2026-08-10 03:00Z SFC–14,500 ft
14NM N LOS ALAMOS, NM, Tuesday, July 28, 2026 through Monday, August 10, 2026 UTC
View FAA NOTAM → - HAZARDS6/9567 2026-07-28 16:27Z – 2026-08-02 04:00Z SFC–8,500 ft
YUCAIPA, CA, Tuesday, July 28, 2026 through Sunday, August 2, 2026 UTC
View FAA NOTAM → - HAZARDS6/9577 2026-07-28 18:00Z – 2026-07-29 04:00Z SFC–11,500 ft
20NM W RICHFIELD, UT, Tuesday, July 28, 2026 through Wednesday, July 29, 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.
Pilot review data
- Runway 9W
- 1102 ft AGL at event
- 163 kt ground speed
- 0 fpm vertical
- Approach stability 40/100
- 3 kt wind
- 0 kt crosswind component
Flight context
- UAL2071
- United Airlines
- B739
- 2026-07-28 19:35 UTC
- US-3224 runway 9W
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