As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, REF HAECOSO# 440516 NR# 32183 EMERGENCY EXIT LIGHT EPSU 13WL FAILS TEST; REF HAECO SO# 440516 NR# 32183 REMOVED AND REPLACED EPSU 13WL BATTERY PACK IAW A320 AMM 33-51-38-020-051-A AND 33-51-38-420-050-A OPS TEST OF THE EPSU CHECKS GOOD IAW AMM 33-51-00-710-001-A. SUPPLEMENTAL INFORMATION TO FOLLOW.