EmergencyDescent — TWY901
2026-07-09 17:21 UTC· KSJC → KCLM· USONIA VENTURES LLC· F900
TWY901 (Usonia Ventures) was operating from KSJC to KCLM on 2026-07-09. SkyMeter detected a emergencydescent at 17:21 UTC. Trace data at the event: 27684 ft AGL, 451 kt GS. Approach stability score: 88/100. Scores in this band are observed on roughly 50% of approaches at this runway and represent the centerline of normal operations. METAR at the time reported 2 kt wind, 2 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.
Active FAA TFR during this flight
Source: FAA TFR archive (hourly snapshot)- SECURITY6/4011 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft
BELLEVUE, WA, Monday, June 1, 2026 through Monday, July 20, 2026 Local
View FAA NOTAM → - SECURITY6/4013 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft
Seattle, WA, Monday, June 1, 2026 through Monday, July 20, 2026 Local
View FAA NOTAM → - SECURITY6/4033 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft
RENTON, WA, Monday, June 1, 2026 through Monday, July 20, 2026 Local
View FAA NOTAM → - SECURITY6/4034 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft
Renton, WA, Monday, June 1, 2026 through Monday, July 20, 2026 Local
View FAA NOTAM → - SECURITY6/4040 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft
Portland, OR, Monday, June 1, 2026 through Monday, July 20, 2026 Local
View FAA NOTAM → - SECURITY6/4041 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft
PORTLAND, OR, Monday, June 1, 2026 through Monday, July 20, 2026 Local
View FAA NOTAM → - 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
View FAA NOTAM → - 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 → - SECURITY6/4204 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
View FAA NOTAM → - SECURITY6/7983 2026-07-05 14:07Z – 2026-07-21 06:59Z SFC–400 ft
San Jose, CA
View FAA NOTAM → - 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 → - SECURITY6/8071 2026-07-08 16:07Z – 2026-07-21 06:59Z SFC–400 ft
PORTLAND, OR
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
- 27684 ft AGL at event
- 451 kt ground speed
- 0 fpm vertical
- Approach stability 88/100
- 2 kt wind
- 2 kt crosswind component
Flight context
- TWY901
- Usonia Ventures
- F900
- KSJC → KCLM
- 2026-07-09 17:21 UTC
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