What was found
BOTH BACK-UP GEN OFF LINE. RESET AND THEY RESTORED. REPLACED BACKUP CONVERTER M24004. INSTALLED SOFTWARE AND ACCOMPLISHED ENGINE RUN. CKS OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BOTH BACK-UP GEN OFF LINE. RESET AND THEY RESTORED. REPLACED BACKUP CONVERTER M24004. INSTALLED SOFTWARE AND ACCOMPLISHED ENGINE RUN. CKS OK.