Diversion — ASA428

KVUO · 08

2026-04-20 20:38 UTC· KPDX → KVUO· ALASKA AIRLINES INC· B739

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ASA428 (Alaska Airlines) was operating from KPDX to MMSD (Los Cabos International Airport) on 2026-04-20. SkyMeter detected a diversion to Pearson Field (KVUO) on runway 08 at 20:38 UTC. Peak cruise altitude FL407, turnaround area near Inyo, US. METAR at the time reported 9 kt wind, 9 kt crosswind component, 16,093 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • SECURITY5/0601 2025-11-30 19:00Z – 2026-05-31 18:59Z SFC–400 ft

    Los Angeles, CA, Sunday, November 30, 2025 through Sunday, May 31, 2026 Local

    View FAA NOTAM →
  • SECURITY6/0091 2026-01-04 00:01Z – 2026-07-04 23:59Z SFC–500 ft

    Coyote Wells, CA, Saturday, January 3, 2026 through Saturday, July 4, 2026 Local

    View FAA NOTAM →
  • SECURITY6/0092 2026-01-04 00:01Z – 2026-07-04 23:59Z SFC–500 ft

    CALEXICO, CA, Saturday, January 3, 2026 through Saturday, July 4, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4160 2026-02-14 08:00Z – 2026-08-15 06:59Z SFC–400 ft

    Chula Vista, CA, Saturday, February 14, 2026 through Friday, August 14, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3475 2026-03-08 09:00Z – 2026-11-01 09:59Z SFC–180 ft

    BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local

    View FAA NOTAM →
  • SECURITY6/5797 2026-04-03 00:01Z – 2026-09-28 23:59Z SFC–400 ft

    SACRAMENTO, CA, Thursday, April 2, 2026 through Monday, September 28, 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 08
  • 20 ft AGL at event
  • 120 kt ground speed
  • 0 fpm vertical
  • 9 kt wind
  • 9 kt crosswind component
  • 16,093 m visibility
  • METAR KVUO 202053Z AUTO VRB03KT 10SM CLR 22/13 A3002 RMK AO2 SLP166 T02170128 58023

Flight context

  • ASA428
  • Alaska Airlines
  • B739
  • KPDX → KVUO
  • 2026-04-20 20:38 UTC
  • KVUO runway 08

All events on this flight

Diversion 20:38:16 UTC · KVUO runway 08 · 20 ft AGL · 120 kt GS
Diversion 20:38:16 UTC · KVUO runway 08 · 20 ft AGL · 120 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· KVUO