LYM356 (C B G) was inbound to KCYS on 2026-07-24. SkyMeter detected a low approach-stability score at Cheyenne Regional Jerry Olson Field (KCYS) on runway 27 at 01:06 UTC. Trace data at the event: 7213 ft AGL, 155 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 10 kt wind, 10 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)- SECURITY6/5841 2026-07-16 13:00Z – 2026-07-27 05:59Z SFC–400 ft
Cheyenne, WY, Thursday, July 16, 2026 through Sunday, July 26, 2026 Local
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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 27
- 7213 ft AGL at event
- 155 kt ground speed
- 0 fpm vertical
- Approach stability 42/100
- 10 kt wind
- 10 kt crosswind component
- 16,093 m visibility
- KCYS 311053Z AUTO 28007KT 10SM CLR 14/09 A3035 RMK AO2 SLP184 T01440094
Flight context
- LYM356
- C B G
- SW4
- 2026-07-24 01:06 UTC
- KCYS runway 27
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