As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ROD - FLT 3627 - AFTER TAKEOFF LANDING GEAR WOULD NOT RETRACT. AIRCRAFT RETURNED TO ROC UNEVENTFULLY. LANDING GAER MEL'D. SUBSEQUENTLY FOUND LANDING GEAR SELECTOR VALVE INOPERATIVE. REMOVED AND REPLACED SELECTOR VALVE IAW ATR 42 MX MANUAL 32-31-51. OPS AND LEAK CHECK GOOD. AIRCRAFT REMOVED FROM MEL AND RETURNED TO SERVICE. (M)