What was found
GEAR DISAGREE MESSAGE. NLG INDICATION WAS NOT ILLUMINATED. NLG DID NOT EXTEND. COMPLETED QRH 14.1.12. AFTER CHKLST COMPLETION NLG EXTENSION SUCCESSFUL. EMERGENCY DECLARED. AFTER SHUTDOWN STATUS MESSAGE LDG GEAR MONITOR. EMERGENCY DECLARED. LANDING GEAR LOCKED DOWN. ADC VMO/MMO SWITCH SELECTED TO ALTN POSITION. PLACED ACFT TO NORMAL CONFIGURATION. CYCLED NLG MULITPLE TIMES ON JACK UNBLE TO GET NLG TO FAILED TOEXTEND. NOTICED EVERY OTHER CYCLE NLG & DOORS SLOW TO OPEN & EXTEND. SUSPECT NLG DOOR SEQUENCE VALVE, NLG DOOR ACTUATOR & NLG LOCK ACTUATOR. R & R NLG SEQUENCE VALVE, NLG DOOR ACTUATOR & NLG LOCK ACTUATOR. OPS & LEAK CHECK PASSED. CYCLED NLG MULTIPLE TIMES, ALL INDICATIONS NORMAL.