Due to the demand in traffic for KTMPBHKTM, Druk Air requires to change the aircraft type to A319 on the following dates:KB400/15MAY/PBHKTM/1045-1130HRS/A319/ALL TIMES IN LOCAL/DEP PBH DELAYED BY 3HRS 45MINUTES KB401/15MAY/KTMPBH/1210-1325HRS/A319/ALL TIMES IN LOCAL/DEP KTM DELAYED BY 3HRS 25MINUTES KB400/19MAY/PBHKTM/1100-1145HRS/A319/ALL TIMES IN LOCAL/ARRIVAL INTO KTM 20MINUTES EARLIER KB401/19MAY/KTMPBH/1230-1345HRS/A319/ALL TIMES IN LOCAL/ARRIVAL INTO PBH 25MINUTES EARLIER