As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG ODOR OF HYDRAULIC FLUID COMING FROM VENTS WITH MAIN AIR VALVES SELECTED ON IN FLIGHT. CLEANED RESIDUAL HYDRAULIC FLUID FROM HYDRAULIC RESEVOIR AIR CHARGE PORT, HYDRAULIC HEAD PRESSURE GUAGE AND LINE, REMOVED AND REPLACED THE LT AND RT ENGINE BLEED AIR TO HYDRAULIC RESERVOIR NON RETURN VALVES, REMOVED AND REPLACED WATER SOCK IAW AMM 21-10-95, 29-10-00.