What was found
NO SATCOM PROMPT ON TAXI. ACFT GROUNDED. PERFORMED SATCOM LOCKUP PROCEDURE. QRH 5.3, ON GROUND. ACARS PROMPT APPEARED AND SYS RESTORED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NO SATCOM PROMPT ON TAXI. ACFT GROUNDED. PERFORMED SATCOM LOCKUP PROCEDURE. QRH 5.3, ON GROUND. ACARS PROMPT APPEARED AND SYS RESTORED.