Unstable approach — N658GR

KIWA · 12C

2025-10-29 17:35 UTC· KTRM → 5AZ3· GLESS RANCH INC· C25C

N658GR (Gless Ranch) was operating from KTRM to 5AZ3 on 2025-10-29. SkyMeter detected a low approach-stability score at Phoenix-Mesa-Gateway Airport (KIWA) on runway 12C at 17:35 UTC. Trace data at the event: 2382 ft AGL, 136 kt GS. Approach stability score: 35/100. 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 14 kt wind, 6 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.

Pilot review data

  • Runway 12C
  • 2382 ft AGL at event
  • 136 kt ground speed
  • 0 fpm vertical
  • Approach stability 35/100
  • 14 kt wind
  • 6 kt crosswind component
  • 16,093 m visibility
  • KIWA 081448Z VRB03KT 10SM CLR 26/14 A2990

Flight context

  • N658GR
  • Gless Ranch
  • C25C
  • KTRM → 5AZ3
  • 2025-10-29 17:35 UTC
  • KIWA runway 12C

All events on this flight

Unstable approach 17:35:22 UTC · KIWA runway 12C · 2,382 ft AGL · 136 kt GS
Unstable approach 17:35:13 UTC · 5AZ3 runway 26 · 2,548 ft AGL · 140 kt GS
Long landing rollout 17:41:01 UTC · 5AZ3 runway 26 · 1,377 ft AGL · 22 kt GS
Unstable approach 17:35:13 UTC · 5AZ3 runway 26 · 2,548 ft AGL · 140 kt GS
Long landing rollout 17:41:01 UTC · 5AZ3 runway 26 · 1,377 ft AGL · 22 kt GS

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

SkyMeter · trace data observed via ADS-B· KIWA