Unstable approach — CMD70

KSTS · 14

2026-04-12 18:32 UTC· KMCC → KSTS· REACH AIR MEDICAL SERVICES LLC· BE20

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CMD70 (Reach AIR Medical Services) was operating from KMCC to KSTS on 2026-04-12. SkyMeter detected a low approach-stability score at Charles M. Schulz Sonoma County Airport (KSTS) on runway 14 at 18:32 UTC. Trace data at the event: 1236 ft AGL, 146 kt GS. Approach stability score: 47/100. 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 11 kt wind, 11 kt crosswind component, 4,828 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.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • 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 →

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 14
  • 1236 ft AGL at event
  • 146 kt ground speed
  • 0 fpm vertical
  • Approach stability 47/100
  • 11 kt wind
  • 11 kt crosswind component
  • 4,828 m visibility
  • KSTS 221253Z AUTO 00000KT 3SM BR OVC003 12/12 A2994 RMK AO2 SLP133 T01220117

Flight context

  • CMD70
  • Reach AIR Medical Services
  • BE20
  • KMCC → KSTS
  • 2026-04-12 18:32 UTC
  • KSTS runway 14

All events on this flight

Unstable approach 18:32:49 UTC · KSTS runway 14 · 1,236 ft AGL · 146 kt GS
Diversion 18:34:03 UTC · KSTS runway 14 · 120 ft AGL · 120 kt GS
Unstable approach 18:32:49 UTC · KSTS runway 14 · 1,236 ft AGL · 146 kt GS
Diversion 18:34:03 UTC · KSTS runway 14 · 120 ft AGL · 120 kt GS

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

SkyMeter · trace data observed via ADS-B· KSTS