As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MDIS 529 33-50 6878 17MAY19 MEM FACT U DURING EMERGENCY LIGHT TEST, RECIEVED EMER BATT LOW (1). R/I 17MAY19 17:32 MEM U REASON CODE : PREMATURE REMOVAL/INSTALLATION OFF MPN: 60-4411-5 POS: ONL SRL: 0163 TAG NBR: 4G9021 ON MPN: 60-4411-5 CPN: 3300197 SRL: 0636 TAG NBR: 0898F2 FACT 17MAY19 17:32 MEM U REMOVED AND REPLACED NR 1 EMERGENCY LIGHT POWER SUPPLY IAW MM 33-51-01-4. EMERGENCY LIGHTS TEST PASSED. A/C OK FOR SERVICE.