As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/GSO - FLT 6348 - DURING CRUISE AT 0945 HOURS ON 3-18-97, MADE A SCHEDULED LANDING AT IAD WITH ONE DISCREPANCY WHICH WAS LT ENGINE RPM INDICATION FAILED. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED TACH GEN INSERT, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (X)