What was found
AFTER T/O RECEIVED GEAR DISAGREE WARN MSG, C/W QRH DIVERTED TO MKE. MSG APPEARED IMMEDIATELY AFTER SELECTING GEAR UP. NOSE DOOR WARNING ALSO PRESENT. CONT BLK 4 WAS NOSE GEAR INDICATED GREEN, MAIN GEAR INDICATED AMBER. PULLED EMERGENCY GEAR HANDLE, ALL INDICATED GREEN LANDING WT 45,400 SMOOTH NORMAL LANDING. AIRCRAFT REMOVED FROM SERVICE. R&R PROX SENSOR PS14GA BRACKET IAW AMM 32-61-05 AND CMM 32-20-04 OPS CHECK GOOD RESET EMER GEAR HANDLE IAW AMM 32-34-00 AND OPS CHECK GOOD 32-30-00