As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ARCING BEHIND RELIEF TUBE COMPARTMENT. AIR STAIR DOOR HAS NO POWER TO INSPECTION LIGHTS AND REAR LIGHT. FOUND RELIEF TUBE SPRING WRAPPED AROUND AIR STAIR LIGHT SWITCH. UNWRAPPED SPRING FROM AIR STAIR LIGHT SWITCH. INSTALLED RELIEF TUBE AND RESET AIR STAIR CIRCUIT BREAKER, NO FURTHER ISSUES DISCOVERED.