As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COCKPIT OVERHEAD EMERGENCY LIGHT DOESNT STAY ON (ILLUMINATES MOMENTARILY) WHEN "EMER LT" SWITCH IS PLACED "ON". ALL OTHER EMER LIGHTS APPEAR OPERATIONAL. REMOVED AND REPLACED EMERGENCY BATTERY AND EMERGENCY BATTER POWER SUPPLY PER AMM 33-51-03. OPS CHECK GOOD. OK FOR SERVICE. UNIT CHANGED IS B5-123