As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OPERATIONAL CHECK OF THE EMERGENCY LIGHT SYSTEM ON A LINE CHECK 3 FLOOR PROXIMITY AND 3 EMERGENCY COVE LIGHTS WERE FOUND NOT TO BE ILLUMINATING. EMERGENCY LIGHT POWER SUPPLY 22LN WAS REPLACED IAW COLGAN AIR WORK CARD 33-50-02S AND SYSTEM CHECKED SATISFACTORILY. AIRCRAFT WAS RETURNED TO SERVICE.