As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN REPORTED THAT PEDESTAL OF INTEGRAL LIGHTS WAS OUT SERVICE. THE SYSTEM WAS VERIFIED WITH OTHER CONTROL PANEL AND FAIL CONTINUED. THE CIRCUIT BREAKERS B1-309, B1-310 AND B1-311 WERE ADJUSTED AND FAIL CONTINUED. THE FEEDING LINES AND VOLTAGES IN CIRCUIT BREAKERS WERE VERIFIED AND THE CIRCUIT BREAKER B1-311 WAS DETECTED OPEN. THE CIRCUIT BREAKER B1-311 WAS REPLACED IAW WDM 33-16-06, TESTED CORRECT.