As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLOW DOWN BOTTLE - VALVE IS OF UNKNOWN MANUFACTURE AND NOT OF PACIFIC SCIENTIFIC MANUFACTURE. FOUND DURING OEM SERVICING (PACIFIC SCIENTIFIC) SEE PRR 0125283. UNAPPROVED MANUFACTURE OF PART BY UNKNOWN SOURCE OR MIS-INSTALLATION OF PART ON WRONG UNIT.