As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A STRONG ELECTRICAL BURNING ODOR WAS NOTED DURING CLIMB FROM 520 FT TO 11,000 FT. CAPTAIN AND FIRST OFFICER DONNED O2 MASKS AND COMPLETED CABIN FIRE/SMOKE QRH CHECKLIST. AN EMERGENCY WAS DECLARED WITH POTOMAC APPROACH AND THE AIRCRAFT LANDED UNEVENTFULLY. MAINTENANCE FOUND A FAULTY RELAY. REMOVED AND REPLACED RELAY K0285 ON CB PANEL 0093. OPS CHECK GOOD IAW EMB 145 AMM 24-65-00 AND 24-31-00. NO DEFECTS NOTED.