As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WEATHER RADAR WILL NOT STAY IN AUTO STAB MODE WITH OUT HOLDING AUTO BUTTON IN. REVERTS TO MANUAL MODE WHEN PRESSURE RELEASED. ACFT GROUNDED. REMOVED AND REPLACED THE WEATHER RADAR CONTROL PANEL IAW AMM 34-43-91. OPENED AND RESET THE WEATHER RADAR CIRCUIT BREAKERS, ALL GROUND FUNCTIONAL TESTS PASSED.