As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WEATHER RADAR FAIL ANNUNCIATED. SUPPLEMENTAL DATA UPDATE THE UNIT HAD A FAILED POWER SUPPLY ASSEMBLY. NOTE WORTHY IS THAT THE UNIT HAD BEEN ON THE AIRCRAFT SINCE 01AUG96 AND WAS TOTALLY CLOGGED WITH DUST WHICH ULTIMATELY LED TO THE POWER SUPPLY FAILURE.