A330
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Troubleshooting
Aircraft Equipment Problem Less Severe; Inflight Event / Encounter Fuel Issue
Flight Crew Overcame Equipment Problem
Aircraft; Equipment / Tooling; Manuals; Human Factors
Approximately 39;000 ft.; I was called up to flight deck from my break for a fuel problem. The FO (First Officer) and Relief Pilot had the ECAM message 'FUEL LO TEMP'. They ran the checklist and after they turned on the OUTR TK XFR; the fuel in the left tip trim tank would not transfer and the 'OUTR TO INR FAULT' message appeared. This is when I was called up; I instructed them to call maintenance and dispatch. When I arrived; maintenance did not have any solutions and dispatch had informed us that another aircraft had the same problem and descended to 34;000 ft. and was suspecting contaminated fuel. We increased speed and descended to 34;000 ft. This allowed us to transfer the fuel to the mains. We climbed back up to 37;000 ft. and continued on to ZZZ with no further issues.
A330 flight crew reported a fuel issue during cruise that was solved by descending and speeding up.