As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN AIR QUALITY ISSUE. FLIGHT ATTENDANT REPORTED A FOG MIST FROM OVERHEAD DUCTS DURING TAXI OUT IN HEAVY RAIN. CLEARED UP AFTER TAKEOFF. MAINTENANCE FOUND A LEAKING HYDRAULIC LINE ON AFT CARGO DOOR SELECTOR VALVE. TIGHTENED LOOSE HYDRAULIC LINE AS PER AMM 52-36-15. OPS AND LEAK CHECK NORMAL. COMPLIED WITH TASK CARDS 26L00021001, 26L00021002 AND 26L00021004.