As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RADAR WILL NOT STAY IN AUTO WHEN SELECTED. TEST MADE WILL NOT TEST. ON 80 SCALE MAP DISPLAY SHOWS TWO OBJECTS AT THE 5 MILE SCALE ON LT AND RT SIDE. GROUNDED - YES. PERFORMED WEATHER RADAR BITE PER B737-900 FIM 34-43 TASK 801. VERIFIED AUTO SWITCH INTERMITTENT DEPENDING ON FINGER PRESSURE ON SWITCH. REMOVED AND REPLACED WEATHER RADAR CONTROL PANEL PER B737-900 AMM 34-43-91. INSTALLATION TEST PASS AND OPERATIONAL TEST PASS PER AMM 34-43-00.