What was found
NR 4 ENGINE START VALVE FAILED TO OPEN IN GROUND START, DUCT PRESSURE IS 40 PSI. NR 4 ENGINE START VALVE MANUAL OPS OK DEFERRED PER DDPG 80-2.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NR 4 ENGINE START VALVE FAILED TO OPEN IN GROUND START, DUCT PRESSURE IS 40 PSI. NR 4 ENGINE START VALVE MANUAL OPS OK DEFERRED PER DDPG 80-2.