As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD - FLT 775 - AFTER TAKEOFF FROM DCA, COCKPIT AND CABIN FILLED WITH SMOKE. DIVERTED AND LANDED IAD WITHOUT INCIDENT. REPLACED OVEN IN FIRST CLASS GALLEY. RAN APU AND ENGINE WITH BOTH PACKS IN FULL OPERATION. SYSTEM GROUND CHECK NORMAL OPERATION. (M)