As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT SIDE WING TANK VERY SLOW TO FEED ON TWO CONSECUTIVE FLIGHTS ; ON 2ND FLIGHT DEVELOPED #1;000 IMBALLANCE PRIOR TO CENTER TANK FEEDING OUT. DID NOT EXCEED #1000 AND REMAINED WITHIN +-200 OF BALLANCE AFTER THE INITIAL BALLANCING AT CRUISE. / [01] FOUND RH AFT BOOST PUMP OUTPUT LOW R&R'D RH AFT BOOST PUMP I.A.W 28-22-41 AMM OPS CK GOOD LEAK CK GOOD.