What was found
DURING CLIMBOUT FROM LUK TO ILG THROUGH 12,000 FT NOTICED STRONG ODOR / BURNING SMELL. SMELL CYCLED ON AND OFF SEVERAL TIMES CLIMBING TO FL 220 AND DESCENDING DOWN TO LANDING. THIS OCCURRED WITH CLIMB POWER AND IDLE WITH APU ISOLATED NO SMOKE OBSERVED. REMOVED CLEANED AND REINSTALLED BOTH OZONE CONVERTERS, CLEANED WATER SEPARATOR T/S APU BLEED AIR VERIFIED BLEED AIR IS CLEAN, RAN ON ENG BLEED AIR CLEAN. ALSO REPLACED ACM, RAN ACM LEAK CK AND OP'S CK GOOD. NO BURNING SMELL OR ODOR NOTICED DURING OPS CHECK AND LEAK CHECK IAW CE560 XL MM 21-23-00.