As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FINAL APPROCH DURING LANDING GEAR EXTENSION, LEFT MAIN GEAR WOULD NOT EXTEND. RED GEAR NOT DOWN INDICATION ON BOTH POSITION 1 AND 2 AND OVERHEAD PANEL. PROCEEDED WITH LANDING GEAR GRAVITY EXTENSION PROCEDURE. ALL GEAR DOORS OPENED BUT LEFT MAIN GEAR STILL NOT DOWN AND LOCKED. A STEADY STATE SIDE LOAD WAS APPLIED AND LEFT MAIN GEAR EXTENDED AND INDICATED GREEN LIGHT. ALL HYDRAULIC INDICATIONS NORMAL. SEQUENCING VALVE APPEARED TO BE BYPASSING. REMOVED AND REPLACED MLG LT SEQUENCING VALVE IAW A300 MM 32-31-37-4. CYCLED MLG 25 TIMES. OPS AND LEAK CK GOOD.