What was found
DURING ENG START, R ENG START VALVE EICAS AND DUCT PRESSURE WENT TO ZERO. TURNING OFF THE LEFT PACK PRODUCED PRESSURE AND WERE ABLE TO START ENG OPS CHECK NORMAL PER FIM 80-11-43-805.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING ENG START, R ENG START VALVE EICAS AND DUCT PRESSURE WENT TO ZERO. TURNING OFF THE LEFT PACK PRODUCED PRESSURE AND WERE ABLE TO START ENG OPS CHECK NORMAL PER FIM 80-11-43-805.