What was found
STL - FLT 627 - DURING CLIMB FOLLOWING GEAR RETRACTION, LEFT MAIN GEAR UNSAFE LIGHT AND GEAR DOOR LIGHT REMAINED ON. REMOVED AND REPLACED LEFT MAIN RETRACT ACTUATOR CYLINDER DUE TO WEAR, MFG PN 3920802-5507, MANUFACTURED BY MCDONNELL DOUGLAS CO. OPERATIONAL CHECK NORMAL. CHECK C -1-17-97 - STL. (X)