What was found
AFTER TAKEOFF GROUND HANDLE IN UP POSITION, LT & RT RED GROUND LIGHTS ILLUMINATED. GROUND HANDLE IN OFF POSITION FOR AFTER T/O CHECK, LANDING GR EXTENDED, ALL 6 GROUND LIGHTS ILLUMINATED. PERFORMED QRH 14.6. FOUND CORROSION ON PIN 28 ON M278 MODULE, CLEANED AS REQUIRED, OPS CHECKS NORMAL IAW MM 33-11-81, SEE WD 32-64-31.