Unstable approach — N901SF

N901SF (Singleton Investments) was operating from KPAO to KHHR on 2026-07-18. SkyMeter detected a low approach-stability score at Jack Northrop Field Hawthorne Municipal Airport (KHHR) on runway 25 at 00:13 UTC. Trace data at the event: 1187 ft AGL, 118 kt GS. METAR at the time reported 10 kt wind, 1 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.

• SECURITY6/4052 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

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• 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 →
• SECURITY6/4060 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 →
• SECURITY6/4061 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 →
• SECURITY6/4192 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 →
• SECURITY6/4204 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

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• SECURITY6/7842 2026-06-27 01:07Z – 2026-07-21 06:59Z SFC–400 ft

  Montecito, CA

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• SECURITY6/7841 2026-06-29 15:07Z – 2026-07-21 06:59Z SFC–400 ft

  Goleta, CA

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• SECURITY6/7843 2026-07-03 16:07Z – 2026-07-21 06:59Z SFC–400 ft

  Santa Barbara, CA

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• SECURITY6/7847 2026-07-03 16:07Z – 2026-07-21 06:59Z SFC–400 ft

  Santa Barbara, CA

  View FAA NOTAM →
• SECURITY6/7983 2026-07-05 14:07Z – 2026-07-21 06:59Z SFC–400 ft

  San Jose, CA

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• SECURITY6/7984 2026-07-05 14:07Z – 2026-07-21 06:59Z SFC–400 ft

  Oakland, CA

  View FAA NOTAM →
• SECURITY6/7985 2026-07-05 14:07Z – 2026-07-21 06:59Z SFC–400 ft

  San Jose, CA

  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.

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