As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L1 DOOR EMERGENCY LIGHT DOES NOT ILLUMINATE ; / [01] PERFORMED TROUBLESHOOTING; FOUND BATTERY PACK (M1674) DEFECTIVE AS PER B737 FIM 33-50 TASK 801.; [02] VERIFIED STEP 1; [03] REMOVED AND REPLACED L-1 DOOR EMERGENCY BATTERY M1674 POSITION. PERFORMED TEST ; TEST PASS. REF. TO B 737 AMM 33-51-06-960-805.; [04] VERIFIED 3