N819SC (HB4) had departed KBJC on 2026-07-20. SkyMeter detected a return to field at Rocky Mountain Metropolitan Airport (KBJC) on runway 12L at 19:00 UTC. Peak altitude 8,179 ft, turnaround area near Niwot, US. 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 0 kt wind, 16,093 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.
Pilot review data
- Runway 12L
- 8179 ft AGL at event
- 258 kt ground speed
- 0 fpm vertical
- Approach stability 40/100
- 0 kt wind
- 0 kt crosswind component
- 16,093 m visibility
- KBJC 170355Z AUTO 00000KT 10SM BKN110 20/10 A3038 RMK AO2
Flight context
- N819SC
- HB4
- C550
- KBJC → KBJC
- 2026-07-20 19:00 UTC
- KBJC runway 12L
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