Unstable approach — WCC33
KRIW · 282026-08-21 16:32 UTC· KSNA → KRIW· WEST COAST AIRCRAFT SALES LLC· B350
WCC33 (West Coast Aircraft Sales) was operating from KSNA to KRIW on 2026-08-21. SkyMeter detected a low approach-stability score at Riverton Regional Airport (KRIW) on runway 28 at 16:32 UTC. Trace data at the event: 6569 ft AGL, 137 kt GS. Approach stability score: 42/100. 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 6 kt wind, 2 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.
Active FAA TFR during this flight
Source: FAA TFR archive (hourly snapshot)- HAZARDS6/2917 2026-08-08 14:00Z – 2026-08-22 05:00Z SFC–13,500 ft
20NM E AFTON, WY, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC
View FAA NOTAM → - HAZARDS6/3042 2026-08-08 18:30Z – 2026-08-22 04:00Z SFC–12,000 ft
1NM E GRACE, ID, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC
View FAA NOTAM → - HAZARDS6/3080 2026-08-08 22:15Z – 2026-08-22 04:00Z SFC–13,000 ft
20NM NE SALT LAKE CITY, UT, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC
View FAA NOTAM → - HAZARDS6/3097 2026-08-09 13:00Z – 2026-08-23 04:00Z SFC–13,000 ft
20NM NE SALT LAKE CITY, UT, Sunday, August 9, 2026 through Sunday, August 23, 2026 UTC
View FAA NOTAM → - HAZARDS6/3098 2026-08-09 14:00Z – 2026-08-23 04:00Z SFC–12,000 ft
1NM E GRACE, ID, Sunday, August 9, 2026 through Sunday, August 23, 2026 UTC
View FAA NOTAM → - HAZARDS6/3118 2026-08-09 14:00Z – 2026-08-23 04:00Z SFC–12,000 ft
1NM E GRACE, ID, Sunday, August 9, 2026 through Sunday, August 23, 2026 UTC
View FAA NOTAM → - HAZARDS6/3167 2026-08-10 05:30Z – 2026-08-24 05:00Z SFC–10,000 ft
104NM SE BURNS, OR, Monday, August 10, 2026 through Monday, August 24, 2026 UTC
View FAA NOTAM → - HAZARDS6/3161 2026-08-10 12:00Z – 2026-08-25 03:30Z SFC–16,000 ft
13NM SE LANDER, WY, Monday, August 10, 2026 through Tuesday, August 25, 2026 UTC
View FAA NOTAM → - HAZARDS6/3659 2026-08-11 13:00Z – 2026-08-24 03:00Z SFC–14,000 ft
26NM SW PRICE, UT, Tuesday, August 11, 2026 through Monday, August 24, 2026 UTC
View FAA NOTAM → - HAZARDS6/3712 2026-08-11 14:00Z – 2026-08-25 04:00Z SFC–8,000 ft
18NM SW PRESCOTT, AZ, Tuesday, August 11, 2026 through Tuesday, August 25, 2026 UTC
View FAA NOTAM → - HAZARDS6/4085 2026-08-12 04:00Z – 2026-08-25 04:00Z SFC–13,000 ft
4NM W RICHFIELD, UT, Wednesday, August 12, 2026 through Tuesday, August 25, 2026 UTC
View FAA NOTAM → - HAZARDS6/4111 2026-08-12 05:00Z – 2026-08-27 05:00Z SFC–10,000 ft
104NM SE BURNS, OR, Wednesday, August 12, 2026 through Thursday, August 27, 2026 UTC
View FAA NOTAM → - HAZARDS6/4089 2026-08-12 12:00Z – 2026-08-27 03:30Z SFC–15,000 ft
2NM SE LANDER, WY, Wednesday, August 12, 2026 through Thursday, August 27, 2026 UTC
View FAA NOTAM → - HAZARDS6/5250 2026-08-16 13:00Z – 2026-08-30 04:00Z SFC–11,000 ft
52NM NE FALLON, NV, Sunday, August 16, 2026 through Sunday, August 30, 2026 UTC
View FAA NOTAM → - HAZARDS6/5423 2026-08-16 19:15Z – 2026-08-30 04:00Z SFC–11,000 ft
52NM NE FALLON, NV, Sunday, August 16, 2026 through Sunday, August 30, 2026 UTC
View FAA NOTAM → - HAZARDS6/5463 2026-08-17 13:00Z – 2026-08-30 04:00Z SFC–13,000 ft
20NM NE SALT LAKE CITY, UT, Monday, August 17, 2026 through Sunday, August 30, 2026 UTC
View FAA NOTAM → - HAZARDS6/5937 2026-08-18 13:00Z – 2026-08-31 03:00Z SFC–13,000 ft
4NM W RICHFIELD, UT, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC
View FAA NOTAM → - HAZARDS6/6067 2026-08-18 18:15Z – 2026-09-01 02:00Z SFC–11,000 ft
52NM NE FALLON, NV, Tuesday, August 18, 2026 through Tuesday, September 1, 2026 UTC
View FAA NOTAM → - HAZARDS6/6954 2026-08-21 14:00Z – 2026-09-04 03:00Z SFC–11,000 ft
33NM SW POCATELLO, ID, Friday, August 21, 2026 through Friday, September 4, 2026 UTC
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 28
- 6569 ft AGL at event
- 137 kt ground speed
- 0 fpm vertical
- Approach stability 42/100
- 6 kt wind
- 2 kt crosswind component
- 16,093 m visibility
- KRIW 162153Z AUTO 09006KT 10SM CLR 26/07 A3019 RMK AO2 SLP168 T02610067
Flight context
- WCC33
- West Coast Aircraft Sales
- B350
- KSNA → KRIW
- 2026-08-21 16:32 UTC
- KRIW runway 28
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