As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/TYS - FLT 6355 - DURING TAXI AT 1710 HRS ON 5-17-97, RETURNED TO GATE DUE TO NR 2 ENGINE START LIGHT WOULD NOT GO OUT AFTER START. MAINTENANCE INSPECTED AND REMOVED AND REPLACED PDU, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)