What was found
ON INITIAL T/O ROLL, LEVEL 1 ALERT " REV PRESS FAULT", ABORTED TO BLOCKS. FAULT EXTINGUISHED AFTER CLEAR OF RUNWAY. PERFORMED FIM 78-30-01, FIG 103, CONTINUITY CHECK BETWEEN J4 PIN 19 (ECU) TO PIN B PRESS, SW DPV AND PIN C (PRESS SW) TO GROUND - OK. HOWEVER R & R PRSOV IAW MM 78-31-07-4-1 AND DPV SOLENOID AND PRESS SW ASSY IAW MM 78-31-08-4-1. PERFORMED OPS CHECK ON NR 1 T/R IAW CHAPTER 7, OK. PERFORMED POWER ASSURANCE CHECK IAW JRH CHAP 7-10, TWICE, SATIS, NO FAULT MESSAGE. ACFT OK FOR SERVICE. OPEN/CLOSE DOOR IAW MM 71-10-00. PREMATURE REMOVAL/INSTALLATION.