As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LGCIU NR 1 FAULT. OUT OF 3000FT GEAR DOORS WERE SLAMMING INTO A/C ON SEVERAL TIMES. GROUNDED - YES. REMOVED AND REPLACED PROXIMITY SENSOR (FIN=26GA) PER REF AMM 32-31-73-000-001-A AND AMM 32-31-73-400-001-A. OPS CHECK GOOD. NO FURTHER DEFECTS NOTED.