As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT # 529, FLL-SAN(AIRTURN BACK TO FLL). FUEL AUTO-FEED FAULT PER ECAM MODE SELECT MAN AFTER SELECTING MAN NOTICED FUEL STARTED TO INCREASE ON RIGHT MAIN TANK TO 12800 LBS. LEFT TANK CONTINUE TO DECREASE FROM 10900 TO 7900 LBS ; REMOVED AND REPLACED CONTROL UNIT LEVEL SENSING FLSCU 1 @ 7QJ AS REQUIRED IAW AMM 28-46-34. PERFORMED FUNCTIONAL TEST IAW AMM 28-46-00-740-001-A, TEST GOOD