As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY EXIT LIGHTNING SYSTEM DUE TO PARTIAL EMERGENCY EXIT LIGHTING ACTIVATION ON THEN OFF AT 8-10 MINUTES. R & R POWER SUPPLY ASSY M1672 IAW AMM 33-51-06. REMOVED AND REPLACED THE BATTERY PACK AT M1672 IAW AMM 33-51-06. OPS CHECKED GOOD.