What was found
RT NR 1 OUTER TANK PUMP LOW PRESS LIGHT FLICKERED INFLIGHT WITH 5.8 IN RT OUTER TANK. BOTH INNER TANKS NOT XFER MANUAL FUEL FEED CONTROL, NO SUCCESS. DESCENT BACK TO AIRPORT, INNER TANKS BEGAN TO FEED. NO OTHER FAULTS. OPS TEST PUMPS & PUMP-LOW-PRESS WARNING SYS IAW AMM 28-21-00-05-02. OPS TEST NORM. PUMP BOOSTER OUTER TANKS ADJ/TEST FOR RT OUTER TNK #1 PUMP IAW AMM. 28-21-19-05 & 28-21-00-05-02 PAR. 2 OPS TEST NORM. TESTED FUEL-PUMP AUTOFEED SYSTEM IAW AMM. 28-21-00-02-02. TEST PASSED. OPS TESTED CENTER & INNER-TANK PUMPS AUTO-CONTROL IAW AMM 28-21-00-05-02. OPS TEST NORM. R & R RELAYS 139QA, 133QA, & 92QA IAW ESPM. 20-46-50 & ASM. 28-21-00 SCHEM. 4. OPS TEST IAW AMM. 28-21-00-05-02. OPS TESTED NORM.