What was found
SELECTED GEAR DOWN ON FINAL. NOSE GEAR RED WITH AMBER DOOR UNSAFE LIGHT. RAN CK-LIST, INHIBIT SWITCH TO INHIBIT NOSE GEAR DROPPED WITH GREEN LIGHT. LANDING UNEVENTFUL. REMOVED FROM SERVICE. FOUND PSEU FAULTS NGDN2, NGNGLK2, NGDRCL. FAULTS CLEARED AFTER RESETTING INHIBIT SWITCH & HYD PWR. REF FIM 32-00-00-810-814 FOR T/S C/W GVI ON MECH SEQ. VALVE. NO DEFECTS NOTED. PROX SENSOR INDUCT VALVE NORMAL RANGE C/W GVI ON MLG NO DEFECTS NOTED. INSPECTED & REPLACED SSU FILTERS. C/W BYPASS CHECK OF NLG DOOR ACT CHECK GOOD. PER FIM 32-00-00-810-826. C/W BYPASS CHECK OF NLG DOOR ACT CHECK GOOD PER FIM 32-00-00-810-826.C/W NOSE GEAR RETRACT & EXTENSION CHECK IAW Q400 AMM 32-31-00-867-802. NO DEFECTS NOTED INDICATES NORMAL. WITH SPU AS HYD SOURCE UP TIME 7 SECONDS DOWN 10 SEC A/C RTS. RETURNED TO SERVICE.