As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EICAS MSG "R ENG PRV" INTERMITTENT DURING TAKE OFF. ACCOMPLISHED BITE TEST OF PRESSURE CONTROLLER AS PER AMM 36-11-18-745-124 AND RT ENG PRV FAULT RESET ON CONTROLLER EICAS SCREEN. OK FOR SERVICE. ALSO C/W STEP K OF AMM 36-11-18 AND ALL OK.