N9HC was inbound to KRDM on 2026-08-20. SkyMeter detected a low approach-stability score at Roberts Field (KRDM) on runway 29 at 23:19 UTC. Trace data at the event: 4135 ft AGL, 140 kt GS. 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 7 kt wind, 5 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)- HAZARDS6/2774 2026-08-07 05:00Z – 2026-08-21 05:00Z SFC–9,000 ft
20NM SE MADRAS, OR, Friday, August 7, 2026 through Friday, August 21, 2026 UTC
View FAA NOTAM → - HAZARDS6/3074 2026-08-08 19:45Z – 2026-08-23 05:00Z SFC–9,000 ft
20NM SE MADRAS, OR, Saturday, August 8, 2026 through Sunday, August 23, 2026 UTC
View FAA NOTAM → - HAZARDS6/3763 2026-08-11 15:45Z – 2026-08-26 04:00Z SFC–10,500 ft
20NM SW THE DALLES, OR, Tuesday, August 11, 2026 through Wednesday, August 26, 2026 UTC
View FAA NOTAM → - HAZARDS6/5112 2026-08-14 16:30Z – 2026-08-29 03:00Z SFC–9,500 ft
19NM NW JOHN DAY, OR, Friday, August 14, 2026 through Saturday, August 29, 2026 UTC
View FAA NOTAM → - HAZARDS6/5190 2026-08-15 04:00Z – 2026-08-29 04:00Z SFC–10,500 ft
20NM SW THE DALLES, OR, Saturday, August 15, 2026 through Saturday, August 29, 2026 UTC
View FAA NOTAM → - HAZARDS6/5212 2026-08-15 15:00Z – 2026-08-30 04:00Z SFC–9,500 ft
19NM NW JOHN DAY, OR, Saturday, August 15, 2026 through Sunday, August 30, 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 29
- 4135 ft AGL at event
- 140 kt ground speed
- 0 fpm vertical
- Approach stability 40/100
- 7 kt wind
- 5 kt crosswind component
- 16,093 m visibility
- KRDM 161256Z 31006KT 10SM FEW080 BKN100 10/08 A3010 RMK AO2 RAB12E27 SLP181 P0000 T01000083 $
Flight context
- N9HC
- C25A
- 2026-08-20 23:19 UTC
- KRDM runway 29
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