Unstable approach — N4163L

KRYN · 06L

2026-06-20 17:57 UTC· LEITZMAN ROBERT A· C172

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N4163L (Leitzman Robert A) was inbound to KRYN on 2026-06-20. SkyMeter detected a low approach-stability score at Ryan Field (KRYN) on runway 06L at 17:57 UTC. Trace data at the event: 3024 ft AGL, 76 kt GS. Approach stability score: 39/100. 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, 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)
  • HAZARDS6/8083 2026-06-13 17:14Z – 2026-06-27 05:00Z SFC–11,000 ft

    10NM E TUCSON, AZ, Saturday, June 13, 2026 through Saturday, June 27, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/8704 2026-06-16 17:05Z – 2026-06-29 05:00Z SFC–11,500 ft

    10NM N TUCSON, AZ, Tuesday, June 16, 2026 through Monday, June 29, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/8804 2026-06-17 05:00Z – 2026-06-30 05:00Z SFC–11,500 ft

    10NM N TUCSON, AZ, Wednesday, June 17, 2026 through Tuesday, June 30, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9293 2026-06-19 13:00Z – 2026-07-02 05:00Z

    10NM N TUCSON, AZ, Friday, June 19, 2026 through Thursday, July 2, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9309 2026-06-19 13:19Z – 2026-07-02 05:00Z SFC–10,500 ft

    10NM N TUCSON, AZ, Friday, June 19, 2026 through Thursday, July 2, 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 06L
  • 3024 ft AGL at event
  • 76 kt ground speed
  • 0 fpm vertical
  • Approach stability 39/100
  • 5 kt wind
  • 2 kt crosswind component
  • 16,093 m visibility
  • METAR KRYN 160245Z 23006KT 10SM CLR 30/15 A2996 RMK LAST

Flight context

  • N4163L
  • Leitzman Robert A
  • C172
  • 2026-06-20 17:57 UTC
  • KRYN runway 06L

All events on this flight

Unstable approach 17:57:51 UTC · KRYN runway 06L · 3,024 ft AGL · 76 kt GS
Unstable approach 17:57:51 UTC · KRYN runway 06L · 3,024 ft AGL · 76 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· KRYN