As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAINS WINDSHIELD WIPER CAME OUT OF PARKED UNCOMMANDED. VIBRATNG AND FLOATING AT BOTTOM. FOUND MOTOR SHAFT WITH PLAY AND WIPER ARM SPLINE BUSHING WORN AND NOT ENOUGH WIPER ARM PRESSURE.REPLACED WIPER MOTOR PER MM. REPLACED WIPER ARM AND BLADE PER MM. ADJUSTED SYSTEM PER MM, OPS CHECK GOOD.