What was found
PIT - FL 335 - ON FINAL APPROACH THE LANDING GEAR HANDLE REQUIRED MORE THAN NORMAL PRESSURE TO MOVE IT TO THE DOWN POSITION. THE CREW THEN EXTENDED THE SLATS AND FLAPS. THE SLATS EXTENDED BUT THE FLAPS DID NOT MOVE. AFTER PERFORMING A GO-AROUND AND TURNING BASE FOR FINAL THE FLAPS EXTENDED VERY SLOWLY. AFTER A NORMAL LANDING THE RIGHT HYDRAULIC PRESSURE DROPPED TO 2,500 PSI UPON FLAP RETRACTION. MX CHECKED THE FLAP HANDLE AREA FOR OBSTRUCTIONS AND OPERATED THE FLAPS. NO FAULTS WERE NOTED. THE A/C WAS JACKED AND THE LANDING GEAR OPERATED SEVERAL TIMES. ALL OPERATIONS WAS NORMAL. THE RIGHT HYDRAULIC TRANSMITTER WAS REPLACED THE ERRATIC OPERATION. (M)