As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH FWD & AFT OVWG EXIT SIGNS EXTINGUISH PRIOR TO 15 MINUTE MINIM UM REQUIRED FOR CAPACITY CHECK (REF. AAR NR 99916671). REMOVED AND REPLACED BATTERY PACK FOR L/H OVERWING EXIT SIGN FWD AND AFT, AND PERFORMED OPS TEST GOOD IAW B737 AMM 33-51-06-960-8 05 (WORK ACCOMPLISHED BY V936248 AND AAR QC V936245).