What was found
NR 1 ENGINE HIGH STAGE VALVE FAILED HEALTH CHECK. ACFT GROUNDED. REPLACED NR 1 ENGINE HIGH STAGE VALVE IAW MM 36-11-06. OPS & LEAK CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NR 1 ENGINE HIGH STAGE VALVE FAILED HEALTH CHECK. ACFT GROUNDED. REPLACED NR 1 ENGINE HIGH STAGE VALVE IAW MM 36-11-06. OPS & LEAK CHECKS GOOD.