As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING REPLACEMENT OF A HYDROMECHANICAL CONTROL UNIT / ENGINE DRIVEN H.P. PUMP, AN UNAPPROVED PMA FUEL FILTER WAS FOUND INSTALLED IN THE HP PUMP PMA PART 5905587 WAS INSTALLED BY THE OVERHAUL FACILITY DURING THE LAST SHOP VISIT. THE OVERHAULER HAS BEEN NOTIFIED AND INSTRUCTED TO INSTALL ONLY P&W APPROVED FILTERS. 2000-11-14TC: MAINTENANCE AND MANUFACTURING FORWARDED INFO.