What was found
FLIGHT CREW REPORTED A FUME EVENT SHORTLY AFTER TAKEOFF, STRONG ODOR OF DIRTY SOCKS. RETURNED TO DEPARTURE. THE AIRCRAFT WAS GROUNDED. PERFORMED CARDS 33L00021002, 33L00021001, 33L00071001, 33L20021002, AND EA 290664. ACCOMPLISHED TSM 71-00-81-812-805-A, REINSPECTED THE NR 2 ENGINE FOR EXTERNAL OIL LEAKS. NO LEAKS NOTED.