What was found
(CAN) NLG DID NOT EXTEND ON NORMAL GEAR EXTENSION EMERGENCY GEAR EXTENSION CARRIED OUT, GEAR EXTENSION SUCESSFUL ACFT LANDED WITH NO FURTHER ISSUES. DURING SWINGS WITH NR 2 HYDRAULICS, NOSE DOOR`S WOULD NOT OPEN DURING GEAR UP. SEQUENCE STOPED BEFORE DAMMAGE, WITH NOSE DOORS PINNED, GEAR FUNCTIONS FINE. AT SECOND ATTEMPT WITH NO PIN, DOORS CHATTER`S ON UP, AGAIN, SWINGS STOPPED. SUSPECT SEQUENCE VALVE NOT WORKING. NLG SEQUENCE VALVE REMOVED IAW AMM32-20-31. NLG DOOR SOLENOID SEQUENCE VALVE REPLACED IAW AMM 32-20-36-02, PARA B. NEXT ITEMS FOR FUNCTION, LEAK CHECK AND CLEAN-UP. LEAK CHECK AND FUNCTION CHECKS C/O, NOSE GEAR SLOW TO EXTEND, FOUND ELECTRIC PUMP AT FAULT REPLACED ELECTRIC PUMP AND SYS CHECKS SERVICEABLE.