What was found
DURING SWITCHING FROM GROUND POWER TO APU GEN, LOST THE SATCOM PROMPT ON CDU. ACFT GROUNDED. FOLLOWED QRH, OPS RESTORED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING SWITCHING FROM GROUND POWER TO APU GEN, LOST THE SATCOM PROMPT ON CDU. ACFT GROUNDED. FOLLOWED QRH, OPS RESTORED.