What was found
BUF - FLT 1157 - AFTER TAKEOFF FROM BUF, EN ROUTE TO CLT, CREW EXPERIENCED A FLAP ASYMMETRY PROBLEM DURING FLAP RETRACTION. ONE FLAP WAS IN THE 5 DEGREE POSITION AND THE OTHER WAS IN THE 2 DEGREE POSITION. CREW DECLARED AN EMERGENCY AND RETURNED TO FIELD AT BUF WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE FLAP POSITION INDICATOR AND INSPECTED/CLEANED CANNON PLUG ON FLAP TRANSMITTER. OPERATIONAL CHECK GOOD. (M)