As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: LANDING GEAR DIDN'T LOWER WHEN HANDLE IN DOWN POSITION. L/G LGCIU 1&2 FAULT. GRAVITY EXTENSION ACCOMPLISHED. LANDED NORMALLY. **SUPPLEMENTAL REPORT FOR AALA202112239667: REPLACED LANDING GEAR SELECTOR VALVE AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 32-31-12-400-001-A AND AMM 32-31-00-720-002-A. ** (CLOSED)