As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIRTY MUSTY SOUR SMELL THRU 10000 RAN QRH PROCEDURES WAS UNABLE TO REMOVE SMELL UNTIL BOTH PACKS WERE OFF. ONCE BOTH PACKS WERE OFF FOR SEVERAL MINUTES THE SMELL SEEMED TO DISSIPATE. FOLLOWING AMM 49-00-00-200-812-A, .INSPECTED APU AND FOUND FUEL LEAK COMING FROM FUEL CONTROL FILTER BOWL. SEE N/R 776143 FOR DISCREPANCY RESOLUTION."