What was found
ODOR IN REAR OF THE CABIN DURING DESCENT, AND AT THE GATE WITH APU RUNNING. AIRCRAFT WAS GROUNDED. ACCOMPLISHED J/C 26L00021001, 26L00021002, AND 26L00021004. FOUND AN INTERNAL OIL LEAK IN THE APU, CHANGED THE APU IAW MIC 3200612. ALL PACK COMPONENTS CHANGED, IAW MIC 3200613, 3200614, 3200615, AND 320616. REPLACED THE APU IAW J/C 26L31049003.