As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW EXPERIENCED AN ABNORMAL GEAR EXTENSION. WHEN THE GEAR WAS SELECTED DOWN THE NOSE GEAR DOORS OPENED AND THE NOSE GEAR DID NOT EXTEND. CREW DECLARED A MISS APPROACH AND HELD. CREW CYCLED GEAR 4 TIMES WITH NOSE GEAR NOT DEPLOYING. EMERGENCY GEAR EXTENSION CHECKLIST INITIATED- GEAR DEPLOYED AND LOCKED SUCCESSFULLY. UNEVENTFUL LANDING. REPLACED FAILED LANDING GEAR CONTROL MANIFOLD WITH NEW. ACCOMPLISHED OPS CHECKS AND PERFORMED SEVERAL GEAR SWINGS WITH NO ABNORMALITIES NOTED.