As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LT CROSSFEED VALVE WAS FOUND TO BE LEAKING (WEEPING FUEL PAST SEALS THAT FAILED. PN 15507A HAD TURNED TO A SOFT PUTTY LIKE SUBSTANCE, MS29513011 0-RINGS HAD GONE HARD. NOTE: THIS VALVE DID NOT APPEAR TO HAVE BEEN REPLACED, HENCE APPROXIMATELY 20 YEARS SERVICE, 5300 HRS.