As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
10 MINUTES BEFORE DESCENT AT FL 360, RECEIVED A GPWS LIGHT AND TERRIAN FAIL LIGHT. ACFT GROUNDED. FOUND THE WEATHER RADAR TRANSCEIVER UNIT LOOSE IN THE RACK. SECURED THE TRANSCEIVER. THE WEATHER RADAR OPS TESTED OK IAW AMM 34-43-00, AND GPWS OPS TESTED OK IAW AMM 34-46-00.