As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CREW REPORTED FUMES IN THE FLT DECK AND WENT ON OXYGEN. DID EMERGENCY DEPRESSURIZATION AND DECLARED AN EMERGENCY. FOUND RING TERMINAL ON THE F/O`S SIDE WINDOW TERMINAL BLOCK, LOWER RT CORNER. LOOSE AND BURNED. WIRE FROM THE T/B TO THE CONTROLLER LOOKS FINE WITH THE EXCEPTION OF THE RING TERMINAL WHICH IS BURNED.