As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ODOR OF DIRTY SOCKS EXPERIENCED IN FLIGHT DECK, CLIMBING THROUGH 15000FT. APU WAS SHUTDOWN FOR TAKEOFF BUT CABIN CREW SAID THEY SMELLED IT ON TAKE OFF AT ROWS IN REAR OF THE ACFT. IT WAS A VERY SRTONG ODOR AND DISSAPATED WHILE CLIMBING THROUGH FL 250. THE ODOR RETURNED ON DESCENT 15000-11000 FT. ACCOMPLISHED A NR 1 & 2 ENGINE WATER WASH IAW AMM 72-00-00-100-900-A & EC 720000-1-4. R & R THE OZONE FILTERS 1 AND 2 IAW AMM 21-51-41.