What was found
ATB: LT AND RT TIE BUSS LOCKOUT ALERTS ON. REPLACED EPCU (ELECTRICAL POWER CONTROL UNIT) IAW AMM 24-21-02 GRD RUN UP CHECK AT IDLE OKAY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ATB: LT AND RT TIE BUSS LOCKOUT ALERTS ON. REPLACED EPCU (ELECTRICAL POWER CONTROL UNIT) IAW AMM 24-21-02 GRD RUN UP CHECK AT IDLE OKAY.