What was found
CREW REPORT ON TAXI OUT GOT THE NR 2 REV ECAM FAULT TWICE FOR ABOUT 10 SECS, HAD CREW DEPLOY AND STOW NR 2 REV NOW HAVE CONTINUOUS NR 2 REV FAULT AND A REV PRESSURIZED ECAM MSG. AIRCRAFT RETURNING TO GATE. TROUBLESHOT REF TSM 78-30 -00-810-842-B. OPS CHECK GOOD WITH ENGINE STATIC. OPS CHECK WITH ENG RUNNING NO ECAM WARNING MESSAGE, POST FLIGHT ECAM MSG << 70467. CONT. 78-31-51 HYD CONT UNIT--HC--EEC2 EIU2FADEC. -RDF-T :REF TSM 78-30-00-810-822 ITM 4.A. RANG OUT WIRES FROM EEC TO HCU PARAGRAPH A, B, C, D FOUND OK SUSPECT EEC. FADAC 2B ALSO FAILS SELF TEST. REPLACED NR 2 EEC.