Unstable approach — N9898
KFFZ · 04R2026-07-28 16:42 UTC· ASPEN AIR MONTANA LLC· BE20
N9898 (Aspen AIR Montana) was inbound to KFFZ on 2026-07-28. SkyMeter detected a low approach-stability score at Falcon Field (KFFZ) on runway 04R at 16:42 UTC. Trace data at the event: 2490 ft AGL, 143 kt GS. Approach stability score: 37/100. 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 5 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)- HAZARDS6/6221 2026-07-16 17:58Z – 2026-07-30 04:00Z SFC–12,000 ft
9NM SE DUGWAY, UT, Thursday, July 16, 2026 through Thursday, July 30, 2026 UTC
View FAA NOTAM → - HAZARDS6/6358 2026-07-17 13:00Z – 2026-07-31 04:00Z SFC–12,000 ft
9NM SE DUGWAY, UT, Friday, July 17, 2026 through Friday, July 31, 2026 UTC
View FAA NOTAM → - HAZARDS6/6359 2026-07-17 14:00Z – 2026-07-31 03:00Z SFC–15,500 ft
5NM E BEAVER, UT, Friday, July 17, 2026 through Friday, July 31, 2026 UTC
View FAA NOTAM → - HAZARDS6/6569 2026-07-18 14:00Z – 2026-07-31 03:00Z SFC–15,500 ft
5NM E BEAVER, UT, Saturday, July 18, 2026 through Friday, July 31, 2026 UTC
View FAA NOTAM → - HAZARDS6/6858 2026-07-20 14:00Z – 2026-08-04 04:00Z SFC–13,000 ft
5NM N HAILEY, ID, Monday, July 20, 2026 through Tuesday, August 4, 2026 UTC
View FAA NOTAM → - HAZARDS6/8489 2026-07-25 01:45Z – 2026-08-08 04:00Z SFC–10,000 ft
14NM NW MISSOULA, MT, Saturday, July 25, 2026 through Saturday, August 8, 2026 UTC
View FAA NOTAM → - HAZARDS6/8496 2026-07-25 14:00Z – 2026-08-08 04:00Z SFC–10,000 ft
14NM NW MISSOULA, MT, Saturday, July 25, 2026 through Saturday, August 8, 2026 UTC
View FAA NOTAM → - HAZARDS6/8883 2026-07-27 14:00Z – 2026-08-09 04:00Z SFC–11,000 ft
23NM SE HAMILTON, MT, Monday, July 27, 2026 through Sunday, August 9, 2026 UTC
View FAA NOTAM → - HAZARDS6/9398 2026-07-28 14:00Z – 2026-08-11 04:00Z SFC–6,000 ft
10NM NW MISSOULA, MT, Tuesday, July 28, 2026 through Tuesday, August 11, 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 04R
- 2490 ft AGL at event
- 143 kt ground speed
- 0 fpm vertical
- Approach stability 37/100
- 5 kt wind
- 5 kt crosswind component
- 16,093 m visibility
- METAR KFFZ 161154Z AUTO 13006KT 10SM CLR 29/17 A2992 RMK AO2 SLP104 T02890167 10311 20289 50001
Flight context
- N9898
- Aspen AIR Montana
- BE20
- 2026-07-28 16:42 UTC
- KFFZ runway 04R
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