Diversion — ASA306

K1B9 · 14

2026-04-12 23:59 UTC· KBOS → K1B9· ALASKA AIRLINES INC· B39M

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ASA306 (Alaska Airlines) was operating from KBOS to KSEA (Seattle Tacoma International Airport) on 2026-04-12. SkyMeter detected a diversion to Mansfield Municipal Airport (K1B9) on runway 14 at 23:59 UTC. Peak cruise altitude FL349, turnaround area near Port Byron, US. METAR at the time reported 8 kt wind, 7 kt crosswind component, 11,265 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.

Pilot review data

  • Runway 14
  • 120 ft AGL at event
  • 120 kt ground speed
  • 0 fpm vertical
  • 8 kt wind
  • 7 kt crosswind component
  • 11,265 m visibility
  • METAR K1B9 210755Z AUTO 01007KT 7SM OVC007 15/15 A2998 RMK AO2 CIG 006V010 T01490147

Flight context

  • ASA306
  • Alaska Airlines
  • B39M
  • KBOS → K1B9
  • 2026-04-12 23:59 UTC
  • K1B9 runway 14

All events on this flight

Diversion 23:59:43 UTC · K1B9 runway 14 · 120 ft AGL · 120 kt GS
Diversion 23:59:43 UTC · K1B9 runway 14 · 120 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· K1B9