As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RADAR ALTIMETER DOES NOT TEST OR INDICATE ALTITUDE. FOUND STRIPLINE ASSY TO BE BAD CAUSING RESISTOR R708 ON OSCILLATOR CIRCUIT REGULATOR ASSY TO BURN. ALSO FOUND WHEN UNIT IS VIBRATED, NEEDLE FLUCTUATES. FOUND CAL/LOOP BOARD TO BE BAD.