One of North Korea’s most active commercial planes, which was involved in a mid-air incident in 2016, reappeared on Monday after two months of inactivity, data on Flightradar24.com shows.

The plane, Air Koryo’s TU204-300 P-632 jet, operates regular flights to Shenyang, Vladivostok and Beijing, however, prior to January 9, tracking data shows it had not operated since November 5.

Personnel at an Air Koryo office contacted by NK News were unaware of the reason for P-632’s relative inactivity but indicated that the plane is marked to return to normal flight operations on January