As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT 963 ON FLIGHT 5123 FROM RDU TO ORF. AFTER ENTERING CRUISE FLIGHT THE RIGHT ENGINE PROPELLER FLUCTUATED UP TO TWO PERCENT. ALSO THE BETA CAP LIGHT ILLUMINATED. AIRCRAFT RETURNED TO RDU AND LANDED WITH NO OTHER PROBLEMS. NO INFLIGHT EMERGENCY WAS DECLARED. AIRCRAFT WAS FERRIED TO CLT FOR REPAIRS. MAINTENANCE REMOVED AND REPLACED THE RIGHT PROPELLER. OPS CHECK WAS GOOD. AIRCRAFT RETURNED TO SERVICE.