What was found
DEPARTED ON A ROUTINE EMS MISSION, SHORTLY AFTER DEPARTURE, PILOT ABORTED FLT AND RETURNED TO HELIPAD. INFORMED MAINTENANCE OF A STRONG ELECTRICAL ODOR IN ACFT CABIN. SOURCE OF ODOR DETERMINED TO BE ELECTRIC MOTOR IN AIR CONDITIONING SYS CONDENSER BLOWER ASSY WHICH IS LOCATED IN THE RT CARGO BAY. THE MOTOR WHEN TURNED ON WOULD MAKE UNUSUAL SOUNDS, EMIT SPARKS AND A ELECTRICAL ODOR. AIR CONDITIONER DISABLED, PLACARDED AND ENTERED INTO DEFERRED DISCREPANCY LOG IAW WITH MEL PROCEDURES. ACFT RETURNED TO SERVICE. (K)