2. Maintenance work is on-progress in Line 1 and Line 2. It is already noontime and they have not completed the maintenance. Proper tool for repair on high area MUST be used by staff. The engineer is physical on top of the steamer exit, kneeling on the conveyor guard of the steamer. Although, I did not see him step over the belt or guard, it is not possible to finish the work, without stepping over the area. There should be a ladder.