What was found
DURING LANDING GEAR EXTENSION, A NOSE GEAR UNSAFE LIGHT ILLUMINATED & THE NOSE GEAR WOULD NOT EXTEND. AN ALTERNATE EXTENSION WAS ACCOMPLISHED AND NOSE GEAR CAME DOWN NORMALLY. LANDING UNEVENTFUL. C/W PSEU FAULT HISTORY RETRIVAL, LEG 01 FAULTS AS FOLLOWS NGDRCL UNREASONABLE NEAR, NGDN2 UN FAR, NGLK2 UNFAR, NGDN1 UN FAR, NGLK1 UN FAR. NO PRESENT FAULTS. C/W T/S PER TECH SERVICES AND DETERMINED THE NLG SOLENOID SEQUENCE VALVE IS BYPASSING. REMOVED & REPLACED NLG SEQUENCE VALVE IAW AMM 32-31-71-000/400-801. NO HELP. NO CONTAMINATION FOUND. FLUSH NOT REQUIRED IAW AMM 29-10-00-617-801 PARA 1B. NLG FAILED RETRACT & EXTEND IAW AMM 32-31-00-867-802. AIRCRAFT DOWN JACKED & MLG DOWNLOCK ACTUATORS RECONNECTED. REPLACED NLG DOOR ACTUATOR IAW 32-31-56-000/400-801. RIGGED NLG DOOR. C/W RETRACT AND EXTEND OF NLG IAW AMM 32-31-00-867-802. OPS CHECKED GOOD. ALL LEAK CHECKED GOOD. A/C OK FOR CONTINUED SERVICE.