As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW DETECTED ELECTRICAL BURNING ODOR AFTER T/O. NO SMOKE NOTED. PAX CLAIMED TO HAVE HEARD A SWOOSH, THEN FELT EXTREME HEAT AND DETECTED BURNING ODOR. IFE DECLARED. AIR RETURN TO DEPARTURE WITH UNEVENTFUL LANDING AND TAXI. 4/7/09 - REMOVED AND REPLACED LT EMERGENCY VALVE AND C/W RUN, OPS, AND LEAK CHECK WITH NO DEFECTS NOTED. 4/7/09 - MX CHECK FLIGHT SATISFACTORY.