As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT 5015, DURING DEPLANING- ACRID SMELL FROM VENTS WITH APU-BLEED ON. TURNED OFF APU BLEED AND SMELL DISSAPATED. TURNED BLEED ON AND SMELL RETURNED. CORRECTIVE ACTION: FOUND OIL LEAD LEAK ON APU FUEL CONTROL UNIT PER W/C 4900-2001 STEP 4. LEVEL B DECON. REPLACED APU FUEL CONTROL UNIT. (LP 7680686, 7680687)