Unstable approach — FFL938

FFL938 (Efficiency Aloft) was operating from KOSH to KSTS on 2026-07-23. SkyMeter detected a low approach-stability score at Charles M. Schulz Sonoma County Airport (KSTS) on runway 14 at 01:15 UTC. Trace data at the event: 1217 ft AGL, 148 kt GS. METAR at the time reported 10 kt wind, 9 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.

• SECURITY6/3475 2026-03-08 09:00Z – 2026-11-01 09:59Z SFC–180 ft

  BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local

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• 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

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• HAZARDS6/4562 2026-07-10 12:00Z – 2026-07-24 05:00Z SFC–17,000 ft

  3NM W LEADVILLE, CO, Friday, July 10, 2026 through Friday, July 24, 2026 UTC

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• HAZARDS6/4555 2026-07-10 14:00Z – 2026-07-23 04:00Z SFC–10,500 ft

  44NM NE WELLS, NV, Friday, July 10, 2026 through Thursday, July 23, 2026 UTC

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• HAZARDS6/4906 2026-07-11 02:45Z – 2026-07-24 04:00Z SFC–14,000 ft

  7NM N OREM, UT, Saturday, July 11, 2026 through Friday, July 24, 2026 UTC

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• HAZARDS6/4964 2026-07-12 00:13Z – 2026-07-26 03:00Z SFC–10,500 ft

  3NM N LOYALTON, CA, Sunday, July 12, 2026 through Sunday, July 26, 2026 UTC

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• HAZARDS6/4978 2026-07-12 13:00Z – 2026-07-26 13:00Z SFC–10,500 ft

  3NM N LOYALTON, CA, Sunday, July 12, 2026 through Sunday, July 26, 2026 UTC

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• HAZARDS6/4975 2026-07-12 13:00Z – 2026-07-26 04:00Z SFC–12,000 ft

  9NM SE DUGWAY, UT, Sunday, July 12, 2026 through Sunday, July 26, 2026 UTC

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• HAZARDS6/5054 2026-07-12 14:45Z – 2026-07-26 13:00Z SFC–12,500 ft

  3NM N LOYALTON, CA, Sunday, July 12, 2026 through Sunday, July 26, 2026 UTC

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• HAZARDS6/5152 2026-07-13 04:00Z – 2026-07-27 04:00Z SFC–15,000 ft

  14NM S STEAMBOAT SPRINGS, CO, Monday, July 13, 2026 through Monday, July 27, 2026 UTC

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• HAZARDS6/5155 2026-07-13 13:00Z – 2026-07-26 04:00Z SFC–11,000 ft

  40NM NE WELLS, NV, Monday, July 13, 2026 through Sunday, July 26, 2026 UTC

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• HAZARDS6/5274 2026-07-13 17:54Z – 2026-07-27 04:00Z SFC–15,500 ft

  15NM E HEBER CITY, UT, Monday, July 13, 2026 through Monday, July 27, 2026 UTC

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• HAZARDS6/5875 2026-07-15 04:00Z – 2026-07-30 04:00Z SFC–12,000 ft

  19NM SW MEEKER, CO, Wednesday, July 15, 2026 through Thursday, July 30, 2026 UTC

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• HAZARDS6/5876 2026-07-15 04:00Z – 2026-07-30 04:00Z SFC–13,500 ft

  7NM SE STEAMBOAT SPRINGS, CO, Wednesday, July 15, 2026 through Thursday, July 30, 2026 UTC

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• SECURITY6/5841 2026-07-16 13:00Z – 2026-07-27 05:59Z SFC–400 ft

  Cheyenne, WY, Thursday, July 16, 2026 through Sunday, July 26, 2026 Local

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• HAZARDS6/6100 2026-07-16 14:00Z – 2026-07-30 04:00Z SFC–10,000 ft

  41NM SE BURNS, OR, Thursday, July 16, 2026 through Thursday, July 30, 2026 UTC

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• HAZARDS6/6221 2026-07-16 17:58Z – 2026-07-30 04:00Z SFC–12,000 ft

  9NM SE DUGWAY, UT, Thursday, July 16, 2026 through Thursday, July 30, 2026 UTC

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• HAZARDS6/6363 2026-07-17 01:54Z – 2026-07-31 04:00Z SFC–8,000 ft

  20NM NW MEDFORD, OR, Friday, July 17, 2026 through Friday, July 31, 2026 UTC

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• HAZARDS6/6388 2026-07-17 02:26Z – 2026-07-31 04:00Z SFC–10,000 ft

  63NM NE REDDING, CA, Friday, July 17, 2026 through Friday, July 31, 2026 UTC

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• HAZARDS6/6393 2026-07-17 02:30Z – 2026-07-31 04:00Z SFC–10,000 ft

  63NM NE REDDING, CA, Friday, July 17, 2026 through Friday, July 31, 2026 UTC

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• HAZARDS6/6409 2026-07-17 04:39Z – 2026-07-30 07:00Z SFC–11,000 ft

  10NM SW MOUNT SHASTA, CA, Friday, July 17, 2026 through Thursday, July 30, 2026 UTC

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• HAZARDS6/6434 2026-07-17 05:07Z – 2026-08-01 04:00Z SFC–10,000 ft

  63NM NE REDDING, CA, Friday, July 17, 2026 through Saturday, August 1, 2026 UTC

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• HAZARDS6/6433 2026-07-17 05:08Z – 2026-08-01 04:00Z SFC–10,000 ft

  63NM NE REDDING, CA, Friday, July 17, 2026 through Saturday, August 1, 2026 UTC

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• HAZARDS6/6358 2026-07-17 13:00Z – 2026-07-31 04:00Z SFC–12,000 ft

  9NM SE DUGWAY, UT, Friday, July 17, 2026 through Friday, July 31, 2026 UTC

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• HAZARDS6/6453 2026-07-17 15:04Z – 2026-08-01 04:00Z SFC–9,000 ft

  26NM NW RILEY, OR, Friday, July 17, 2026 through Saturday, August 1, 2026 UTC

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• HAZARDS6/6454 2026-07-17 15:06Z – 2026-07-31 04:00Z SFC–9,000 ft

  10NM N RILEY, OR, Friday, July 17, 2026 through Friday, July 31, 2026 UTC

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• HAZARDS6/6572 2026-07-18 03:14Z – 2026-07-31 04:00Z SFC–11,000 ft

  18NM SE PRINEVILLE, OR, Saturday, July 18, 2026 through Friday, July 31, 2026 UTC

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• HAZARDS6/6738 2026-07-19 03:43Z – 2026-07-23 04:00Z SFC–6,500 ft

  7NM NE REDDING, CA, Sunday, July 19, 2026 through Thursday, July 23, 2026 UTC

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• HAZARDS6/6733 2026-07-19 12:00Z – 2026-08-02 04:00Z SFC–10,500 ft

  16NM NE SUSANVILLE, CA, Sunday, July 19, 2026 through Sunday, August 2, 2026 UTC

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• HAZARDS6/6741 2026-07-19 12:00Z – 2026-08-02 04:00Z SFC–6,500 ft

  7NM NE REDDING, CA, Sunday, July 19, 2026 through Sunday, August 2, 2026 UTC

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• HAZARDS6/6766 2026-07-19 17:32Z – 2026-07-26 04:00Z SFC–13,000 ft

  5NM N HAILEY, ID, Sunday, July 19, 2026 through Sunday, July 26, 2026 UTC

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• HAZARDS6/6774 2026-07-19 18:27Z – 2026-08-02 04:00Z SFC–10,500 ft

  22NM NE SUSANVILLE, CA, Sunday, July 19, 2026 through Sunday, August 2, 2026 UTC

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• HAZARDS6/6812 2026-07-19 23:08Z – 2026-08-03 03:00Z SFC–11,000 ft

  23NM SE PRINEVILLE, OR, Sunday, July 19, 2026 through Monday, August 3, 2026 UTC

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• HAZARDS6/6855 2026-07-20 01:34Z – 2026-08-03 03:00Z SFC–11,000 ft

  45NM NW BURNS, OR, Monday, July 20, 2026 through Monday, August 3, 2026 UTC

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• HAZARDS6/6858 2026-07-20 14:00Z – 2026-08-04 04:00Z SFC–13,000 ft

  5NM N HAILEY, ID, Monday, July 20, 2026 through Tuesday, August 4, 2026 UTC

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• HAZARDS6/6894 2026-07-20 14:02Z – 2026-08-03 04:00Z SFC–12,500 ft

  12NM NW CRAIG, CO, Monday, July 20, 2026 through Monday, August 3, 2026 UTC

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• HAZARDS6/6900 2026-07-20 14:42Z – 2026-08-03 04:00Z SFC–13,500 ft

  11NM SW KREMMLING, CO, Monday, July 20, 2026 through Monday, August 3, 2026 UTC

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• AIR SHOWS/SPORTS6/5564 2026-07-20 19:15Z – 2026-07-23 23:30Z SFC–16,000 ft

  Oshkosh, WI, Monday, July 20, 2026 through Thursday, July 23, 2026 UTC

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• HAZARDS6/7245 2026-07-21 03:43Z – 2026-08-04 03:30Z SFC–7,000 ft

  9NM NW GRASS VALLEY DISPATCH CENTER, CA, Tuesday, July 21, 2026 through Tuesday, August 4, 2026 UTC

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• HAZARDS6/7220 2026-07-21 04:00Z – 2026-08-04 04:00Z SFC–12,000 ft

  19NM SW MEEKER, CO, Tuesday, July 21, 2026 through Tuesday, August 4, 2026 UTC

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• HAZARDS6/7221 2026-07-21 04:00Z – 2026-08-04 04:00Z SFC–13,500 ft

  7NM SE STEAMBOAT SPRINGS, CO, Tuesday, July 21, 2026 through Tuesday, August 4, 2026 UTC

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• HAZARDS6/7702 2026-07-22 13:08Z – 2026-08-05 04:00Z SFC–11,500 ft

  11NM SW CRAIG, CO, Wednesday, July 22, 2026 through Wednesday, August 5, 2026 UTC

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• HAZARDS6/7534 2026-07-22 14:00Z – 2026-08-05 04:00Z SFC–9,500 ft

  4NM NE BOISE, ID, Wednesday, July 22, 2026 through Wednesday, August 5, 2026 UTC

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• HAZARDS6/7854 2026-07-22 17:23Z – 2026-08-05 04:00Z SFC–7,000 ft

  9NM NW GRASS VALLEY DISPATCH CENTER, CA, Wednesday, July 22, 2026 through Wednesday, August 5, 2026 UTC

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• HAZARDS6/7914 2026-07-22 18:44Z – 2026-08-05 04:00Z SFC–7,000 ft

  20NM NW MEDFORD, OR, Wednesday, July 22, 2026 through Wednesday, August 5, 2026 UTC

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• AIR SHOWS/SPORTS6/6432 2026-07-23 01:00Z – 2026-07-26 03:30Z

  OSHKOSH, WI, Thursday, July 23, 2026 through Sunday, July 26, 2026 UTC

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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.

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