As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 396 MCO-LGA, CREW DECLARED EMERGENCY AND DIVERTED TO JFK DUE TO UPON GEAR EXTENSION DECENDING THROUGH 2500 BRAKES RELEASED ECAM APPEARED WITH BRAKES 1 AND 3 RELEASED AUTO BRAKE INOP STATUS. RETRACTED GEAR ON GO AROUND, THEN EXTENDED GEAR ON SUBSEQUENT APPROACH. RELEASED NEVER EXTINGUISHED. THE TECHNICIAN REMOVED AND REPLACED BSCU 10GG IAW AMM 32-42-00. BITE TEST GOOD.