What was found
WHEN ONE OR BOTH BATTERIES SELECTED & NO GROUND POWER CONNECTED, NO INDICATION OF ELECTRICAL POWER SEEN. REPLACED 6BP-1 CONTACTOR IAW MM24-38-55 GROUND OPERATIONS CHECKED OKAY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHEN ONE OR BOTH BATTERIES SELECTED & NO GROUND POWER CONNECTED, NO INDICATION OF ELECTRICAL POWER SEEN. REPLACED 6BP-1 CONTACTOR IAW MM24-38-55 GROUND OPERATIONS CHECKED OKAY.