As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT RADAR SYS TILTS DOWN UNCOMMANDED IN FLT. TILT DEGREE ON HSI SHOWS COMMANDED TILT, BUT THE RADAR POINTS DOWN AND PAINTS GROUND CLUTTER. L SYS IS UNRESPONSIVE TO TILT INPUTS. 2ND WRITE UP ON CONSECUTIVE FLIGHTS. REMOVED AND REPLACED THE LT RADAR TRANSCEIVER IAW AMM 34-43-01. BITE CHECKED GOOD. CLEAR TO RETURN TO SERVICE.