What was found
FLT 513 - HNL - NOSE GEAR WOULD NOT RETRACT, CONFIRMED DOWN WITH CONFIG PAGE. RECYCLED, STILL STAYED DOWN. REMOVED AND REPLACED NLG BUNGEE CYL PER AM 32-35-02, S/N OFF EFS37385, CONDITION SAME. REMOVED AND INSTALLED NOSE GEAR RETRACT CYL PER AMM 32-35-01, CONDITION SAME. REMOVED NOSE STEERING T-FITTING LEFT TUNNEL. FOUND CHECK VALVE FAILED IN NOSE GEAR RETRACT LINE. REPLACED CHECK VALVE AND REINSTALLED 'T'. (M)