What was found
FLT 296 - CUN-GDL - AIRCRAFT RETURNED, NLG DID NOT RETRACT. CAPTAIN REPORTED THE PERFORMED 3 CYCLES BUT FAIL REMAIN. AT PLATFORM, A MAINTENANCE SERVICE WAS PERFORMED TO THE NLG IAW MM 32-21-02 AND A TEST FLIGHT WAS REQUESTED TO VERIFY THE PERFORMANCE OF THE NLG, ALL CORRECT. DURING OVERNIGHT SERVICE, THE NLG ASSY WAS REPLACED IAW MM 32-21-02, MAINTENANCE SERVICE WAS PERFORMED TO THE NLG IAW MM 32-21-02, GROUND SENSING CONTROL MECHANISM WS VERIFIED IAW MM 32-23-01, RETRACTION AND EXTENSION TESTS WERE PERFORMED IAW MM 32-30-00, THE STEERING SYSTEM WAS TESTED IAW MM 32-52-00 AND THE NLG ACTUATOR WAS REPLACED IAW MM 32-32-06, ALL CORRECT. (M)