As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/ORF - FLT 6616 - DURING CLIMB AT 0700 HOURS ON 4-1-97, MADE AN UNSCHEDULED LANDING AT IAD DUE TO LT PROP HEAT SHOWED ZERO AMPS. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED RT BRUSH BLOCK, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (X)