As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STARTED PNEU HEALTH CHECK ON NR 1 & 2 ENGINES. PRV FAILED. INSTALLED NEW VALVE. ALSO ACCOMPLISHED PNEUMATIC HEALTH CHECK ON NEW PRV IAW MM. TEST IS GOOD. NR 2 ENG PRSOV FAILED PNEUMATIC HEALTH CHECK. REPLACED NR 2 PRSOV IAW MM, TESTS OK, NO LEAKS.