Unstable approach — AIP1599
KBIL · 28R2026-08-31 23:53 UTC· KBIL → KBIL· ALPINE AVIATION INC· B190
AIP1599 (Alpine Aviation) was operating from KBIL to KBIL on 2026-08-31. SkyMeter detected a low approach-stability score at Billings Logan International Airport (KBIL) on runway 28R at 23:53 UTC. Trace data at the event: 4693 ft AGL, 144 kt GS. METAR at the time reported 5 kt wind, 3 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)- HAZARDS6/6723 2026-08-20 14:00Z – 2026-09-03 04:00Z SFC–9,000 ft
16NM E BIG TIMBER, MT, Thursday, August 20, 2026 through Thursday, September 3, 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 28R
- 4693 ft AGL at event
- 144 kt ground speed
- 0 fpm vertical
- 5 kt wind
- 3 kt crosswind component
- 16,093 m visibility
- KBIL 071130Z AUTO 33007KT 10SM SCT012 BKN065 16/15 A2980 RMK T01600150 OCNL LTGICCG CB DSNT NE MADISHF
Flight context
- AIP1599
- Alpine Aviation
- B190
- KBIL → KBIL
- 2026-08-31 23:53 UTC
- KBIL runway 28R
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