As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEPARTED WITH APPROX 24.1K FUEL, DURING CLIMB WITH ALL TANK PUMPS ON AND FUEL CROSSFEED CLOSED, STARTED LOOSING FUEL OUT OF THE RIGHT TANK WENT UP TO 8000 FEET, AND RETURNED TO DEPARTURE. LOST APPROX 1000 POUNDS FUEL FROM THE RIGHT TANK. THE AIRCRAFT WAS GROUNDED. REMOVED AND REPLACED THE RT FQIS COMPENSATOR UNIT IAW AMM 28-41-21.