What was found
ATB - DUE TO A SHOCK ABSORBER FAULT. NOSE LANDING GEAR WOULD NOT RETRACT. REPEAT OF PREVIOUS MALFUNCTION. DEFERRED LANDING GEAR RETRACTION SYSTEM PER MEL. PERFORMED GEAR DOWN FERRY TO ATL. REPLACED NLG GROUND SENSE MECHANISM COMPONENTS, ADJUSTED NLG EXTEND PROX SENSOR 24GA/25GA AND ACCOMPLISHED A FULL SERVICE OF THE NLG STRUT. (LP 8612400, 1538275 - AIRCRAFT WAS GROUNDED)