What was found
MSN/MKE - FLT 1158 - DURING APPROACH, CREW SELECTED LANDING GEAR DOWN WHICH FAILED TO EXTEND. CREW DECLARED AN EMERGENCY AND MANUALLY EXTENDED LANDING GEAR. AFTER RECEIVING ALL 3 GEAR DOWN AND LOCKED INDICATIONS, MADE UNEVENTFUL LANDING. MAINTENANCE INSPECTED AND GROUND OPERATED THE LANDING GEAR AND NO PROBLEMS NOTED WITH THE SYSTEM. AFTER A SATISFACTORY TEST FLIGHT, AIRCRAFT WAS RETURNED TO SERVICE. (X)