At 16:09:44 (74 seconds after the start of the take-off run), passing , Key began the turn towards the Epsom NDB and reported that he was climbing as cleared and the flight entered cloud. At 16:10 (90 seconds), Key commenced a standard noise abatement procedure which involved reducing engine power. As part of this, at 16:10:03 (93 seconds) he retracted the flaps from their take-off setting of 20°. Shortly afterwards, BE 548 reported passing above ground level and was re-cleared to climb to above sea level. During the turn, the airspeed decreased to , below the target speed.