What was found
UPON APPROACH AND LANDING BACK TO BASE, CREWMEMBER IN REAR OF AIRCRAFT NOTICED A BURNING ODOR COMING FROM THE ELECTRICAL COMPARTMENT IN THE NR 1 SIDE WALL OF THE AIRCRAFT. LANDED AND EXAMINED THE AREA, THEN REMOVED ELECTRICAL POWER FROM CIRCUIT AND ODOR DISSIPATED. UPON REAPPLICATION OF POWER SMELL RETURNED. TURNED OFF ALL ELECTRICAL POWER AND SHUT POWER DOWN. MAINTENANCE ALERTED. DEFERRED MEDICAL POWER SOCKET IAW MEL 2440-04. COULD NOT DUPLICATE, FOUND TO BE IN AIRWORTHY CONDITION.