As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE: L AIL B FLT/CTL AIL SERVO FAULT ECAM ABOUT 25 MINS AFTER LEVEL OFF AT FL 390 ; REF STS W/O # 3238 NR # 670 REMOVED AND REPLACED LH AILERON B SERVO IAW AMM 27-14-51-000-0010/A 400-0010A PERFORMED OPS CHECK IAW AMM 27-14-00-710-0010A OPS CHECKS GOOD.