As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEVERAL EMERGENCY LIGHTS BY MID-CABIN SECTION FAILED CAPACITY TEST.<[01] REMOVED AND REPLACED BATTERY AT M1669 AND M1668 I.A.W AMMM 33-51-06-960-805 SEPT 4.A TO E; AND POWER SUPPLY AT M1669 AND M1668 I.A.W AMM 33-51-06-960-806 STEP 5.A TO E; INSTALLATION TEST NORMAL;[02] VERIFIED STEP 1