Unstable approach — N929SS

KHEF · 34R

2026-06-23 17:37 UTC· GMN JOINT AIR LLC· PRM1

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N929SS (GMN Joint AIR) was inbound to KHEF on 2026-06-23. SkyMeter detected a low approach-stability score at Manassas Regional Airport/Harry P. Davis Field (KHEF) on runway 34R at 17:37 UTC. Trace data at the event: 1299 ft AGL, 144 kt GS. Approach stability score: 48/100. 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 8 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.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • SECURITY6/3968 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    Winston Salem, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3970 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    White Sulphur Springs, WV, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3971 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    Winston Salem, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    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 →
  • SECURITY6/3998 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

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

    View FAA NOTAM →
  • SECURITY6/4001 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    GREENSBORO, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4004 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    CHARLOTTE, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4005 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    Greensboro, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4007 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    Charlotte, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4114 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    LOUISVILLE, KY, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4116 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    LOUISVILLE, KY, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4119 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

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

    View FAA NOTAM →
  • SECURITY6/4121 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

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

    View FAA NOTAM →
  • SECURITY6/4135 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

    CLAYTON, MO, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4161 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

    St, Louis, MO, Monday, June 1, 2026 through Monday, July 20, 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 →

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 34R
  • 1299 ft AGL at event
  • 144 kt ground speed
  • 0 fpm vertical
  • Approach stability 48/100
  • 8 kt wind
  • 3 kt crosswind component
  • 16,093 m visibility
  • METAR KHEF 161256Z 00000KT 10SM CLR 19/16 A3039 RMK AO2 SLP295 T01890156 $

Flight context

  • N929SS
  • GMN Joint AIR
  • PRM1
  • 2026-06-23 17:37 UTC
  • KHEF runway 34R

All events on this flight

Unstable approach 17:37:41 UTC · KHEF runway 34R · 1,299 ft AGL · 144 kt GS
Unstable approach 17:37:41 UTC · KHEF runway 34R · 1,299 ft AGL · 144 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· KHEF