As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 468, FLL-ATL (AIR TURN BACK TO FLL). BLEED 1 LEAK ON EICAS AFTER TAKEOFF AT ABOUT 13K FT ; ACCOMPLISHED FIM TASK 36-21-00-810-813-A FOUND DC4 GREASE (INCREASES CAPACITANCE CHANGES IMPEDANCE) ON LOOP3 L/H PACK CERAMIC PINS CHA & B . CLEANED & REPLACED CERAMIC PINS LOOP3 & FOUND SMALL LEAK AT HEAT EXCHANGER COUPLING REPLACED O-RINGS LEAK CK GOOD. OPS CK LOOPS 3 CHA &B & ENG IDLE RUN GOOD ALL LOOPS CONTINUITY CK GOOD 7.3 OHMS NO SHORTS.