As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 4 ENGINE SHUT DOWN IN FLIGHT. FOUND CSD GARLOCK SEAL TO BE LEAKING. REMOVED CSD AND GENERATOR, INSTALLED DISPATCH KIT PER B747 MM 24-11-00. RAN NR 4 ENGINE FOR 30 MINUTES, NO OIL LOSS, QUANTITY STEADY PER MM 72-00-00, OK FOR CONTINUED SERVICE.