As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, EMERGENCY PACKS 11WL AND 12WL FAIL FOR COMM ON PTP; REF HAECO N/R 440545-28082 REMOVED AND REPLACED BATTERY PACKS 11WL AND 12WL. OPS CHECK GOOD IAW A320 AMM 33-51-18 PB401. BITE CHECK GOOD IAW A320 AMM 33-51-00-710-001-A. SUPPLEMENTAL INFORMATION TO FOLLOW.