As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 3 ENGINE START VALVE OPEN LIGHT ILLUMINATED ON TAXI-OUT. SHUT DOWN ENGINE AND CLOSED NR 3 BLEED. REMOVED AND REPLACED NR 3 ENGINE START VALVE (P/N 979254-1-1) (S/N 13835) OFF WITH (P/N 979254-1-1) (S/N P-1541) ON, PER M/M 80-11-11. OPS CHECK GOOD.