As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SATCOM HI GAIN FAILED. STATUS MSG01- ACTIVE CRUISE HARD; HGA HIGH POWER AMPLIFIER (LEFT) OR SATELLITE DATA UNIT (LEFT) OUTPUT CIRCUIT IS OPEN OR SHORTED. DB- SATELLITE DATA UNIT (LEFT) MSG-2360121 ACTIVE ER HARD. RESET HI GAIN CB AND SDU L CB, NO HELP. SDU AND HI GAIN AMP OUT OF STOCK. SYSTEM BYTE SHOWS TP HPA WITH VSWR FAULT. SUSPECT HPA. REPLACED HPA. OP CHECKS OKAY.