As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 6275 - ELM-IAD - DUIRNG CRUISE, NOTICED AN ELECTRICAL SMELL IN THE COCKPIT. AIRCRAFT LANDED AT IAD WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE ROOF PANEL BACKLIGHTING DIMMER SWITCH. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)