As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LG RETRACTION, NOSE GEAR DOORS WOULD NOT CLOSE. INDICATION ON WHEEL PAGE CONFIRMED WITH ACFT BUFFETING. RECYCLED GEAR, SAME RESULT. NOSE GEAR DOORS CLOSED 3 MINUTES LATER & STAYED CLOSED. REPLACED THE NLG ACTUATING CYLINDER IAW AMM 32-31-16-400-001-A. OPERATIONS CHECKED GOOD.