As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN TURNING ON WX RADAR, WX STAB ILLUMINATES FOLLOWED BY WX FAIL ABOUT 5 SECONDS LATER. WX RADAR WILL NOT TURN ON IN ANY MODES. GROUNDED - YES. FOUND THAT WXR RT NOT SECURED IN RACK. SECURED WXR RT. OPS TEST REF FIM 34-43-00-710-802-001 TESTS OK.