Crews of tens of locomotive workteams at West Pyongyang, Sinsongchon and Pyongyang service brigades of engine under the Pyongyang Railway Bureau prepared repair tools and spare parts and conducted self-checking and self-repairing during their service to carry out their first-half yearly plans.

Several locomotive workteams of the Chongjin Railway Bureau, too, successfully fulfilled their first-half yearly plans by introducing rational operation method according to the state of railways while paying attention to technical management.

Many locomotive workteams of Kaechon and Hamhung railway bureaus made big strides in transporting freight.