Japan’s Ministry of Land, Infrastructure, Transport and Tourism (MLIT) has classified the emergency landing incident involving a Hokkaido Air System (HAC) aircraft on December 11 as a serious incident.
Japan Airlines flight JL2823 operated by Hokkaido Air System, flying from Sapporo/Okadama to Akita (aircraft type: ATR42-600, registration: JA14HC), was carrying a total of 26 people, including 3 crew members and 23 passengers. The aircraft departed at 12:27 p.m., 1 hour and 57 minutes behind schedule, and took off at 12:32 p.m. A malfunction occurred in the right engine output system at 12:34 p.m.
At 12:37 p.m., while flying about 9 kilometers northwest of Okadama Airport at an altitude of approximately 150 meters, the right engine unintentionally shut down. As a result, at 12:45 p.m. the destination was changed to Hakodate. At 12:56 p.m. the crew requested priority handling from air traffic control, and the aircraft landed at Hakodate at 1:33 p.m. It arrived at the parking spot at 1:37 p.m., and passenger disembarkation began at 1:58 p.m.
A post-landing inspection revealed that the thrust of the left engine, which had remained in operation, had also temporarily decreased.
