As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE BACKUP GEN DOES NOT COME ON LINE AFTER ENGINE START 3X. PER C-CHECK CREW, REPLACE BACKUP CONVERTER M24008. RAN NR 2 ENGINE, MSG 24-47050 STILL SHOW LATCHED. FOUND CROSSED WIRES T1 AND T2 AT M24004 BACKUP GENERATOR. CORRECTED PER WDM24-25-21. REINSTALLED ORIGINAL BACKUP CONVERTER M24008. IDLE RUN OP-CHECK REQUIRED. ACP IDLE RUN PER MM-71-00 -00-501, TEST 3. BACK UP GEN OPS CHECK OK.