What was found
GEAR DISAGREE MESSAGE ON EICAS ON INITIAL GEAR RETRACTION, NO GEAR MOVED ON RETRACTION CYCLE. ALSO AT THAT TIME STATUS MESSAGE OF PROX SYS FAULT 1. (FLIGHT 4799 - FILED CLOSED)INTERROGATED MDC AND FOUND B1-007412. PERFORMED FIM TASK 32-61-05-810-828. PERFORMED RIGGING PROCEDURE ON #2 NLG CENTERED SENSOR REF AMM 32-61-05. OPS CHECK GOOD. PERFORMED GEAR SWING REF AMM 32-30-00. NO FURTHER DEFECTS NOTED.