What was found
PDIS 676 73-35 0791 18OCT21 OKC OPEN U IN CRUISE FLIGHT AT FL340 ABOUT AN HOUR AFTER TAKEOFF WE GOT ECAM WARNING OF ENG #1 FUEL FILTER CLOG. WE ALSO GOT THE FUEL CLOG LITE FOR THE #1 ENGINE. WE FOLLOWED THE QRH PROCEDURE AND REDUCED THE #1 THROTTLE TO IDLE BUT THE CLOG LIGHT AND ECAM WARNINGS DID NOT GO AWAY. WE DIVERTED TO LAND AND LANDED APPROX 30 MINUTES AFTER THE INITIAL WARNING. THE ECAM WARNING AND FUEL CLOG LITE BOTH REMAINED ON UNTIL ENGINE WAS SHUT DOWN. WE DID NOT NOTICE ANY UNUSUAL FUEL FLOW OR ENGINE INDICATIONS. FACT 18OCT21 20:56 OKC REPLACED #1 ENG FUEL FILTER, (WHICH DID NOT APPEAR TO BE CLOGGED AT ALL) REF AMM 73-12-02-04-0-F AND REPLACED FUEL FILTER DIFF PRESSURE SW AS WELL , REF AMM 73-34-11-04. OPS AND LEAK CHECKS GOOD. RAN ENG REF JRH CH6, AND AMM 71-00-00-5 OPS NORMAL WITH NO FUEL CLOG LIGHT. ACFT OK FOR SVC.