As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH, LOST ALL (REMAINING, NR 2 AND NR 3) GENERATORS IN FLIGHT DURING APPROACH. RESET NR 2 GEN. NO VOLTAGE OR FREQS. ON NR 3, UNABLE TO RESET. FAULT PANEL INDICATED NR 3 SYSTEM UNDER VOLTAGE. LANDING WAS MADE WITHOUT INCIDENT. SWAPPED NR 3 GCU AND APU GCU. OPS CHECK OF BOTH SYSTEMS SATISFACTORY IAW MM. AIRCRAFT WAS RETURNED TO SERVICE. (NOTE: NR1 PREVIOUSLY DEFERRED).