TM 1-1520-238-T-7 Change 5 10–130.3 10–35B. FUEL XFEED CIRCUIT BREAKER DOES NOT STAY CLOSED WITH ENGINE 1 AND 10–35B ENGINE 2 CROSSFEED VALVES AT NORMAL (ADB) (cont) 6. Check for short between P441-B11 and ground. Does short exist? YES Go to step 9. NO Go to step 7. 7. Check for short between P442-B8 and ground. Does short exist? YES Go to step 8. NO Go to step 10. 8. Detach P939. Check for short between P442-B8 and ground. Does short exist? YES Repair shorted wire between P442-B8 and P939-8. Go to paragraph 10–17. NO Replace engine 2 fuel crossfeed/shutoff valve (TM 1-1520-238-23). 9. Detach P938. Check for short between P441-B11 and ground. Does short exist? YES Repair shorted wire between P441-B11 and P938-8. Go to paragraph 10–17. NO Replace engine 1 fuel crossfeed/shutoff valve (TM 1-1520-238-23). 10. Detach P191 and P174. Check for short between: P429-B14 and ground, P191-A2 and ground, P191-A8 and ground. Does short exist? YES Repair shorted wire between: P429-B14 and P191-A1, P191-A2 and P174-B19, P191-A8 and P174-B6. Go to paragraph 10–17. NO Go to step 11. 11. Check for short between P174-A18 and ground. Does short exist? YES Go to step 12. NO Go to step 23. 12. Detach P938. Check for short between P174-A18 and ground. Does short exist? YES Repair shorted wire between: P174–A18 and P938–11. Go to paragraph 10–17. NO Go to step 13. 13. Check for short between (L1)J1–11 and ground. Does short exist? YES Replace engine 1 fuel crossfeed/shutoff valve (TM 1-1520-238-23). NO Go to step 14. 14. Detach P457. Check for short between P938–12 and ground. Does short exist? YES Repair shorted wire between P938–12 and P457–A19. Go to paragraph 10–17. NO Go to step 15. 15. Detach wire at (A402) TB2–31–R. Check for short between (A402)J22–A19 and ground. Does short exist? YES Repair shorted wire between (A402) J22–A19 and TB2–31–R. Go to paragraph 10–17. NO Go to step 16.