As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT ENGINE THRUST REVERSER ARM LIGHT ILLUMINATED IN FLIGHT. EMERGENCY CHECKLIST WAS FOLLOWED, AN EMERGENCY WAS DECLARED AND THE ACFT DIVERTED, LANDING WAS UNEVENTFUL. SHIMMED ROLLER PIN ASSEMBLIES ON BOTH THRUST REVERSER THROTTLE LINKS AS REQUIRED IAW DWG 5565248. OPS CHECKS GOOD. ACFT RETURNED TO SERVICE.