Overview

• The aircraft landed at Wakkanai Airport around 11:20 a.m. local time as a bird‑strike prevention vehicle was still clearing the runway.
• The transport ministry says the plane entered without air traffic control clearance after the crew diverted to avoid cumulonimbus clouds.
• The flight was ANA 4841, a Bombardier DH8-400 from New Chitose, carrying 74 passengers and crew.
• No injuries or damage were reported, and officials say the event could have escalated into an accident.
• The Japan Transport Safety Board has dispatched two investigators to examine the communication breakdown and runway procedures.