As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6319 - IAD-CLE - DURING CLIMB, MADE AN UNSCHEDULED LANDING DUE TO RIGHT RPM INDICATION DROPPED TO ZERO. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE REMOVED AND REPLACED TACH GEN, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)