What was found
FLT 784, DURING APPROACH, AT 3000 FEET, THE ACFT ENCOUNTERED A FUEL CONTROL FAILURE ON NR 2 ENG. A GO AROUND WAS INITIATED TO COMPLY WITH THE EMER CHECKLIST. THE ENG 2, NR 1 FIRE BOTTLE WAS FIRED AS A PRECAUTION. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. R & R ENG 2 HMU.