As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRBORNE APU GEN OFF BUS EICAS MSG OCCURRED. IAW MEL 24-5 FLIGHT REQUIRED AN APU GEN TO BE OPERATOR TO CONTINUOUS FLIGHT, RETURNED. APU GEN FUNCTION DEFERRED IAW MEL 24-8. R & R NR 4 ENG GEN IAW WC 24-800-00. OPERATIONS CHECKED GOOD. NO LEAKS NOTED. MEL RESTORED.