Diversion — ASH4063

ASH4063 (United Airlines) was operating from KIAD to KJAX (Jacksonville International Airport) on 2026-08-13. SkyMeter detected a diversion to Fernandina Beach Municipal Airport (K55J) on runway 04 at 18:48 UTC. Peak cruise altitude FL341, turnaround area near Rockfish, US. Approach stability score: 25/100. 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 3 kt wind, 2 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

• SECURITY6/0879 2026-08-06 12:00Z – 2026-08-14 20:00Z SFC–2,000 ft

  Laurel, MD, Thursday, August 6, 2026 through Friday, August 14, 2026 Local

  View FAA NOTAM →
• SECURITY6/2968 2026-08-10 12:30Z – 2026-08-15 06:00Z SFC–2,500 ft

  MAYPORT, FL, Monday, August 10, 2026 through Saturday, August 15, 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.

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