What was found
SATCOM LOCK UP WHEN SWAPPED POWER FROM GROUND POWER TO APU. ACFT GROUNDED. RESET WITH QRH PROCEDURE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SATCOM LOCK UP WHEN SWAPPED POWER FROM GROUND POWER TO APU. ACFT GROUNDED. RESET WITH QRH PROCEDURE.