As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IND FLT 634 EN ROUTE, LAS TO PHL. THE FLIGHT CREW NOTICED A 2400 LB PER HOUR FUEL LOSS. THE FIRST OFFICER CONFIRMED THAT THERE WAS A VAPOR COMING FROM THE RIGHT ENGINE PYLON AREA. THE CREW DIVERTED TO IND AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED O-RINGS GOING ON THE FUEL TUBE FROM THE FUEL FLOW REGULATOR TO THE HIGH PRESSURE PUMP INLET. AIRCRAFT LEAK CHECKS OK.