take-off climb area "take-off climb area" means an area described as a take-off climb area and delineated by grey borders on Plan No. PW 1241 which is deposited in the office of the Director of Survey; PU(A) 358/1997 - AERODROME (CONTROL OF OBSTRUCTIONS) (KUALA LUMPUR SEPANG AERODROME) ORDER 1997 2. Interpretation.