As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCREPANCY: REFERENCE LP 378021 AIRCRAFT WAS GROUNDED DUE TO AN SDR REPORTABLE EVENT. LG NOT DOWN-LOCKED ECAM GEAR DID NOT EXTEND AT ALL. SOUNDED LIKE THE DOORS OPENED. SECOND ATTEMPT GEAR CAME DOWN AND LOCKED. PERFORMED TROUBLESHOOTING IAW TSM 32-31-00-810-842-A AND TSM 32-31-00-810-869-A. DURING GEAR SWINGS FOUND VALVE SELECTOR 41GA FAULTY. REMOVED AND REPLACED 41GA IAW AMM 32-31-31-400-001-A. OPS CHECK AND LEAK CHECK GOOD.