Unstable approach — AMF1987

KSKA · 23

2026-05-27 01:09 UTC· KPSC KSKA· UAS TRANSERVICES INC· E120

AMF1987 (UAS Transervices) was operating from KPSC to KSKA on 2026-05-27. SkyMeter detected a low approach-stability score at Fairchild Air Force Base (KSKA) on runway 23 at 01:09 UTC. Trace data at the event: 3526 ft AGL, 143 kt GS. Approach stability score: 32/100. 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, 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.

Pilot review data

  • Runway 23
  • 3526 ft AGL at event
  • 143 kt ground speed
  • 0 fpm vertical
  • Approach stability 32/100
  • 5 kt wind
  • 3 kt crosswind component
  • 16,093 m visibility
  • KSKA 200955Z AUTO 00000KT 10SM CLR 13/07 A3009 RMK AO2 SLP177 T01340065 $

Flight context

  • AMF1987
  • UAS Transervices
  • E120
  • KPSC → KSKA
  • 2026-05-27 01:09 UTC
  • KSKA runway 23

All events on this flight

Unstable approach 01:09:32 UTC · KSKA runway 23 · 3,526 ft AGL · 143 kt GS
Long landing rollout 01:13:34 UTC · KSKA runway 23 · 2,342 ft AGL · 15 kt GS
Unstable approach 01:09:32 UTC · KSKA runway 23 · 3,526 ft AGL · 143 kt GS
Long landing rollout 01:13:34 UTC · KSKA runway 23 · 2,342 ft AGL · 15 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· KSKA