What was found
OZONE ODOR FROM PACKS WHILE ON HP BLEED, BUT NOT IP BLEED. COULDN'T TELL WHICH PACK, ACCOMPLISHED NR 1 ENGINE WASH. INSTALLED AND SECURED THE NR 1 AND 2 OZONE FILTERS IAW AMM 21-51-41. OPERATIONAL TESTED AND LEAK CHECKED SATISFACTORY. NR 2 ENGINE REMOVED AND REPLACED IAW AMM 71-00-20-400-040.