As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LRD - FLT 3296 - LANDING GEAR WILL NOT RETRACT AFTER TAKEOFF. ALL 3 GREEN LIGHTS ON. DISAGREEMENT LIGHT ON. GEAR HANDLE IN UP POSITION. REMOVED AND REPLACED LANDING GEAR CONTROL VALVE IAW AMM 32-31-15. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M)