As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT JB288 LGB-LAS ON FINAL APPROACH HAD AN ECAM WARNING L/G GEAR NOT DOWNLOCKED. APPLIED THE L/G GRAVITY EXTENSION. DECLARED AN EMERGENCY AND LANDED. FOUND PINS BROKE/PUSH IN AT 41GA DOOR SEL VALVE. REPLACED PER 32-31-34, PERFORMED GEAR RETRACTION PER 32-31-00. OPS CHECK NORMAL.