What was found
ON DEPATURE EICAS MESSAGE "FLAPS DRIVE" APPEARED AND THE OTBD T/E FLAPS WOULD NOT RETRACT PAST 1 DEGREE OR EXTEND BEYOND 1 DEGREE. RETURNED TO DEPARTURE. MX FOUND THE LT OTBD FLAP POSITION TRANSMITTER ELECTRIC CONNECTOR WAS CONTAMINATED WITH DEICING FLUID. THE CONNECTOR WAS CLEANED AND SYS OPERATED NORMALLY IAW THE AMM 27-51-00. POSITION INDICATION OPERATED NORMALLY IAW AMM 27-58-00. ACFT WAS RETURNED TO SERVICE WITH NO FURTHER FLAP ISSUES.