TM 1-1520-238-T-7 10–219 10–77. PRESSURE REFUELING/DEFUELING – WIRING INTERCONNECT DIAGRAM (cont) 10–77 C B W268 A J1 P264 W268 J2 P943 J1 A P1067 W268 J1 P251 W268 B 28 VDC IN J1 P1086 2 (NOTE 4) A OPEN CLOSED B 2 A59 P/O AFT FUEL CELL RETURN (NOTE 3) 10 GS610 11 1 2 (NOTE 12) P1067 1 3 2 SP1(HS) 28 VDC IN 4 3 1 ISOLATION FUEL VALVE SWITCH (AFT TANK) 4 (NOTE 9) 2 S64 28 VDC IN GS500 28 VDC IN (28 VDC OUT) L17 2 5 4 1 FUEL TRANSFER SHUTOFF VALVE (NOTE 2) 3 (HS)(NOTE12) P260 SP1 GS360 RTN L48 VALVE CLOSED (NORMALLY CLOSED) 1 FUEL VENT SHUTOFF VALVE 2 CLOSED OPEN W214 W216 AFT REFUEL/DEFUEL VALVE AFT PILOT FUEL VALVE LIMIT AND REVERSAL SWITCH MOT M70-004-4A SHEET 4 OF 6 SWITCH CONTROL SOLENOID H(5) J(5) K(5) L(5) M(5) N(5) D(3)