As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALL OF THE CABIN AND COCKPIT HAD A WET & MUSTY ODOR. SLIGHT BIT OF OIL. FIRST NOTICED DURING TOGA TAKEOFF. AGAIN WHEN IN CRUISE PASSING THRU HIGH CLOUDS, FINALLY DURING DESCENT AT 18000FT. INSPECTED BOTH ENGINES FOR OIL LEAKS, NO LEAKS FOUND. FOUND BOTH ENGINES OIL LEVELS HIGH. REMOVED OIL TO FULL LINES. PERFORMED BOTH ENGINE IDLE RUNS. NO ODOR NOTED. RAN APU BLEED. NO ODOR NOTED. OK FOR SERVICE.