TM 1-1520-238-T-7 11–271 11–50. RTR BRK CIRCUIT BREAKER – DOES NOT STAY CLOSED WITH BUCS TST 11–50 SWITCH SET TO PLT (cont) 9. Check for short between between P688–127 and ground. Does short exist? YES Repair shorted wire between: P688–127 and P459–A9 J459–A9 and J272–2. Go to paragraph 11–23. NO Go to step 10. 10. Check for short between P688–128 and ground. Does short exist? YES Repair shorted wire between: P688–128 and P459–A13, P459–A13 and J272–4. Go to paragraph 11–23. NO Replace pilot collective SPAD (TM 1-1520-238-23). 11. Check for short between P413–B8 and ground. Does short exist? YES Go to step 12. NO Go to step 15. 12. Detach P1 from J270. Check for short between P413–B8 and ground. Does short exist? YES Repair shorted wire between P413–B8 and J270–3. Go to paragraph 11–23. NO Go to step 13. 13. Check for short between P688–123 and ground. Does short exist? YES Repair shorted wire between: P688–123 and P459–A14, J459–A14 and J270–2. Go to paragraph 11–23. NO Go to step 14. 14. Check for short between P688–124 and ground. Does short exist? YES Repair shorted wire between: P688–124 and P459–A10, J459–A10 and J270–4. Go to paragraph 11–23. NO Replace pilot lateral SPAD (TM 1-1520-238-23). 15. Check for short between P472–A3 and ground. Does short exist? YES Go to step 16. NO Go to step 19. 16. Detach P1 from J269. Check for short between P472–A3 and ground. Does short exist? YES Repair shorted wire between P472–A3 and J269–3. Go to paragraph 11–23. NO Go to step 17. 17. Check for short between P688–125 and ground. Does short exist? YES Repair shorted wire between: P688–125 and P459–A8, J459–A8 and J912–B2, J912–B2 and J269–2. Go to paragraph 11–23. NO Go to step 18. 18. Check for short between P688–126 and ground. Does short exist? YES Repair shorted wire between: P688–126 and P459–A12, J459–A12 and J912–B3, P912–B3 and J269–4. Go to paragraph 11–23. NO Replace pilot directional SPAD (TM 1-1520-238-23).