What was found
AIRCRAFT 3092, CIDS1 EPSU SYS TEST FAILING. FWD L EPSU (10WL) BAT AND MID L EPSU (15WL) BAT FAULTS. CORRECTIVE ACTION: PERFORMED RESET OF 10WL AND 15WL PER AMDS WC 0514-2000 STEP 1.L. REMOVED 10WL AND 14WL BATTERIES PER A321 AMM 33-51. SEVERAL FAULTS REMAIN. 10WL EPSU SELF TEST INDICATING "OVERLOAD" OR SHORT-CIRCUIT OF CONNECTED LOADS OR PROX SWITCHES". CABIN CEILING PANEL 221BC REQUIRES REINSTALL. RESEATED CONNECTOR ON 10WL. CHECKED SYSTEM REF A321 AMM 33-51. OPS CKS GOOD. (LP 5459716)