Unstable approach — N77NG

KPMD · 04

2026-08-12 14:13 UTC· KMYF → KMYF· NORTHROP GRUMMAN SYSTEMS CORP· B350

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N77NG (Northrop Grumman Systems) was operating from KMYF to KMYF on 2026-08-12. SkyMeter detected a low approach-stability score at Palmdale Regional/USAF Plant 42 Airport (KPMD) on runway 04 at 14:13 UTC. Trace data at the event: 3662 ft AGL, 138 kt GS. Approach stability score: 74/100. Scores in this band are observed on roughly 25% of approaches at this runway: one or more gates outside the per-runway tightest envelope, but still inside the typical operating range. 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)
  • HAZARDS6/0745 2026-08-01 14:00Z – 2026-08-14 04:00Z SFC–9,000 ft

    15NM N RAMONA, CA, Saturday, August 1, 2026 through Friday, August 14, 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 04
  • 3662 ft AGL at event
  • 138 kt ground speed
  • 0 fpm vertical
  • Approach stability 74/100
  • 5 kt wind
  • 2 kt crosswind component
  • 16,093 m visibility
  • KPMD 160953Z AUTO 10003KT 10SM CLR 14/11 A2996 RMK AO2 SLP122 T01390111 $

Flight context

  • N77NG
  • Northrop Grumman Systems
  • B350
  • KMYF → KMYF
  • 2026-08-12 14:13 UTC
  • KPMD runway 04

All events on this flight

Unstable approach 14:13:01 UTC · KPMD runway 04 · 3,662 ft AGL · 138 kt GS
Unstable approach 14:13:01 UTC · KPMD runway 04 · 3,662 ft AGL · 138 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· KPMD