As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MDIS 901 33-50 6224 01JUL23 BSL FACT U SVC CHECK, NO EMERGENCY LIGHT ON DOOR 1L (EXTRERIOR AND INTERIOR) R/I 01JUL23 11:36 BSL U REASON CODE : PREMATURE REMOVAL/INSTALLATION OFF MPN: 2013-1A POS: 2 SRL: 110082 ON MPN: 2013-1A CPN: 3301128 SRL: 102539 TAG NBR: 9I2316 FACT 01JUL23 11:36 BSL U AMM: 33-51-07-2 REV 131.12 BATTERY PACK OF THE PWR SUPPLY M731 REPLACED IAW AMM 33-51-07-2 REV 131.12 TEST OK