As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY EXIT PATH LIGHTS LOCATED ON ALL H SEATS IN COACH COMES ON AND OFF THROUGHOUT FLT. AISLE OVERHEAD EMERGENCY EXIT SIGN AT ROW 17 RIGHT SIDE WILL NOT ILLUMINATE DURING TEST. REPLACED BATTERY PACKS M1554& M1555. EMERGENCY LIGHTS OPERATING NORMALLY, STEADY. AISLE OVHD EMERGENCY LIGHT EXIT OPS NORMALLY AFTER BATTERY PACKS REPLACED.