What was found
DEFECT: TRAILING EGDE FLAPS DISAGRE INFLIGHT. FLAP HANDEL AT 30; FLAPS INDICATED JUST OVER 25 . FLAPS DID NOT MOVE UP WHEN SELECTED INFLIGHT BUT DID MOVE TO 30 AFTER LANDING.: RESOLUTION: TROUBLESHOOTING SHOWED FAULTY L/H FLAP POSITION TRANSMITTER.R&R'D L/H FLAP POSITION TRANSMITTER REF. AMM. 27-50-01-400-801 TESTS GOOD. ALSO R&R'D CKPT INDICATOR REF. AMM. 27-58-00.CHECKS GOOD. ADDITIONAL INFORMATION: FLAPS DISAGREE ON APPROACH TO MSP AND EMERGENCY DECLARED. FLIGHT LANDED SAFELY WITHOUT INCIDENT IN MSP.