As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GIVES A THRUST REVERSER 'UNSAFE' LIGHT, INTERMITTENTLY. THIS IS A KNOWN PROBLEM WITH THIS UNIT PER THE MANUFACTURER. THEY ARE COMING OUT WITH A NEW UNIT IN 1999. THIS IS A FALSE INDICATION. REPLACED UNIT WITH REPAIRED ONE. TESTED AND RETURNED AIRCRAFT TO SERVICE.