Unstable approach — N831VP

KTYS · 23R

2026-06-17 17:22 UTC· KHOU → KTYS· ALANA 650 AIRCRAFT LLC· C650

N831VP (Alana 650 Aircraft) was operating from KHOU to KTYS on 2026-06-17. SkyMeter detected a low approach-stability score at McGhee Tyson Airport (KTYS) on runway 23R at 17:22 UTC. Trace data at the event: 2073 ft AGL, 159 kt GS. Approach stability score: 45/100. 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 9 kt wind, 2 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)
  • SECURITY6/3979 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    ATLANTA, GA, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

    View FAA NOTAM →
  • SECURITY6/3980 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    CHATTANOOGA, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3990 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    CHATTANOOGA, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3991 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    MARIETTA, GA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • HAZARDS6/5656 2026-06-04 16:19Z – 2026-06-18 00:15Z SFC–2,000 ft

    22NM SW TALLAHASSEE, FL, Thursday, June 4, 2026 through Thursday, June 18, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/5771 2026-06-04 21:47Z – 2026-06-18 00:15Z SFC–3,500 ft

    22NM SW TALLAHASSEE, FL, Thursday, June 4, 2026 through Thursday, June 18, 2026 UTC

    View FAA NOTAM →
  • SECURITY6/6447 2026-06-09 05:01Z – 2026-07-20 04:59Z SFC–1,000 ft

    Houston, TX, Tuesday, June 9, 2026 through Sunday, July 19, 2026 Local

    View FAA NOTAM →
  • SECURITY6/7495 2026-06-17 04:01Z – 2026-06-18 03:59Z SFC–1,000 ft

    Atlanta, GA, Wednesday, June 17, 2026 through Wednesday, June 17, 2026 Local

    View FAA NOTAM →
  • SECURITY6/8212 2026-06-17 04:01Z – 2026-07-17 03:59Z SFC–400 ft

    Kennesaw, GA, Wednesday, June 17, 2026 through Thursday, July 16, 2026 Local

    View FAA NOTAM →
  • SECURITY6/7952 2026-06-17 14:00Z – 2026-06-17 23:00Z SFC–3,000 ft

    Houston, TX, Wednesday, June 17, 2026 Local

    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 23R
  • 2073 ft AGL at event
  • 159 kt ground speed
  • 0 fpm vertical
  • Approach stability 45/100
  • 9 kt wind
  • 2 kt crosswind component
  • 16,093 m visibility
  • KTYS 110253Z 03008KT 10SM FEW050 FEW130 18/16 A2990 RMK AO2 SLP120 60000 T01830161 50005 PNO $

Flight context

  • N831VP
  • Alana 650 Aircraft
  • C650
  • KHOU → KTYS
  • 2026-06-17 17:22 UTC
  • KTYS runway 23R

All events on this flight

Unstable approach 17:22:42 UTC · KTYS runway 23R · 2,073 ft AGL · 159 kt GS
Unstable approach 17:22:42 UTC · KTYS runway 23R · 2,073 ft AGL · 159 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· KTYS