As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PFM NR 1 ENG HEALTH CHK FOR PRSOV FOUND REGULATED FUNCTIONAL FAIL. IAW AMM 36-11-09-002-033-001 REV 125 AND AMM 36-11-09-402-058-001 REV 125 REPLACED NO 1 ENG PRSOV. IAW AMM 36-11-09-402-058 REV 125 STEP G PRM PRSOV TEST RESULT NORMAL. IAW AMM 36-11-09-402-058 REV 125 STEP N PUT THE AIRCRAFT BACK TO USUAL CONDITION.