What was found
RECEIVED T/E FLAP DISAGREE ON ECIAS WITH FLAPS 20 DEGREES AND 156 KIAS, RAN QRH FOR T/E FLAP DISAGREE AND LANDED WITH FLAPS 20 DEGREES, GROUND PROXIMITY TO OVERIDE, L/E ALTN FLAPS TO ALTN, T/E ALTN FLAPS TO ALTN. UNEVENTFUL LANDING. REMOVED AND REPLACED RT INBD FLAP TRANSMISSION REF AMM 27-51-06-4. OPS CK LEAK CK GOOD.