As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT WHILE AT V2 RIGHT FUEL COMPUTER ANNUNCIATOR ILLUMINATED AND THE NR 2 ENGINE ROLLED BACK TO 70 PERCENT AND STARTED SURGING. THE AIRCRAFT ROLLED RIGHT AT APPROXIMATELY 50 FEET IN THE AIR. CORRECTIVE ACTION WAS TAKEN TO MAINTAIN CENTERLINE AND CLIMB. EMERGENCY WAS DECLARED AND AIRCRAFT LANDED BACK AT KJAC WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE RIGHT FUEL CONTROL UNIT, AND TIGHTENED LOOSE T2 CANNON PLUG AND P2 LINE B-NUT AT THE PT2 SENSOR. OPERATIONAL AND LEAK CHECKS WERE SATISFACTORY. AIRCRAFT WAS RETURNED TO SERVICE.