As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"ENG FUEL FILTER 'L EICAS, RTFL FAULT CODE 73-60921. FOUND MSG73-60921, FIM 73-34 TASK 803. REPLACED CANNON PLUG DS73001 BUT STILL INTERMITTENT. FINALLY FOUND PREVIOUS REPLACED DIFF PRESS SW AT FAULT. PIN A TO GND HAS ONLY 1 HOM, IT SHOULD BE ISOLATED, REPLACED IT AGAIN.