As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL - AFTER TAKEOFF LANDING GEAR HANDLE WOULD NOT MOVE TO LANDING GEAR UP POSITION. USED LANDING GEAR OVERRIDE PROCEDURES TO RETRACT LANDING GEAR. FOUND LANDING GEAR ACCESSORY UNIT, MFG P/N 65-60211-17, WITH INTERNAL MALFUNCTION. REPLACED LANDING GEAR ACCESSORY UNIT. LANDING GEAR OPERATION CHECKED NORMAL. (M)