As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CRG HEAT FAULT DISPLAYED ON UPPER ECAM SCREEN - COND CFDS SHOWS AFT CARGO HEAT TRIM VALVE 12HC PCN 644-0093. BAD PART IS PRESS REGULATING VALVE. ACP OPERATIONAL TEST OF THE AFT CARGO COMP HEATING SYS USING APU BLEED METHOD. OPS CK TEST OF THE FLOW CNTRL VALVES. CARGO HT TRIM VLVS OPS CK. NORMALLY IN ALL MODES.