What was found
AFT EPSU SHOWS, UNIT FAULT, ON SELF TEST. REF NR 598N220 FOUND DAMAGED WIRES AT 21ABC-17ABC THAT WERE SHORTED TO GROUND AND FAULTED OUT 2 EPSU'S. REPAIRED WIRES AND REPLACED EPSU'S AT 10WL AND 13WL. SYSTEM OPS CHECK GOOD. REF TSM 33-51-00-810-801-A, ESPM 20-48-25, AMM 33-51-38, PG 401 AND ASM 33-51-02, SCH 2, PG 252, SH 3, 33-51-04, PG 119, SH 1-4 AND 33-51-02, P74 SH2.