As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED STRONG SMELL OF SMOKE IN CABIN AFTER TAKE-OFF. MAINTENANCE INSPECTED AIRCRAFT HEATING AND ELECTRICAL SYSTEM WITH NO OBVIOUS DEFECTS NOTED. REPLACED THE AVIONICS MASTER SWITCH AS A PRECAUTIONARY MEASURE. NO DEFECTS NOTED.