What was found
OBSERVED SMOKE FROM BOTTOM OF NR 1 ENGINE COWLING ON TAXI INTO ORD. LINE MAINTENANCE DETERMINED THAT HYDRAULIC FLUID WAS LEAKING FROM A LOOSE B-NUT. B-NUT WAS TIGHTENED AND SYSTEM WAS CHECKED. NO OTHER LEAKS NOTED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
OBSERVED SMOKE FROM BOTTOM OF NR 1 ENGINE COWLING ON TAXI INTO ORD. LINE MAINTENANCE DETERMINED THAT HYDRAULIC FLUID WAS LEAKING FROM A LOOSE B-NUT. B-NUT WAS TIGHTENED AND SYSTEM WAS CHECKED. NO OTHER LEAKS NOTED.