As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCOVERED FUEL LEAKING, LOWER WING LT ENGINE NACELLE. REMOVED FUEL BLADDER AND FOUND THE LOWER IB NIPPLE CRACKED AND ALLOWING FUEL TO LEAK. FUEL CELL HAD BEEN REPAIRED A YEAR EARLIER. DATE OF MFG AUGUST 1978. INSTALLED NEW BLADDER, IT WAS FELT THAT THIS BLADDER HAD REACHED ITS USEFUL LIFE LIMIT.