TM 1-1520-238-T-7
Change 5
11–376.3
11–91.
STAB MAN DC CIRCUIT BREAKER – DOES NOT STAY CLOSED (cont)
11–91
22. Detach P991 from (A638)J3–R.
Check for short between P1077–S and ground.
Does short exist?
YES
Repair shorted wire between
P1077–R and P991–R.
Go to paragraph 11–88.
NO
Replace STAB CONT UNIT 2
(A638) (TM 1-1520-238-23).
23. Attach P1077 to (A637)J3.
Check for short between P427–H and ground.
Does short exist?
YES
Go to step 24.
NO
Go to step 25.
24. Detach P1077 from (A637)J3.
Check for short between P427–H and ground.
Does short exist?
YES
Repair shorted wire between
P427–H and P1077–m.
Go to paragraph 11–88.
NO
Repair shorted wire between
(A329):
J1–m and TB1–5–B,
TB1–5–F and TB1–1/2–B,
TB1–5–D and (XK1–5)X1.
Go to paragraph 11–88.
or replace MAN CONT NOSE
DOWN relay (A329)K1–5
(TM 1-1520-238-23).
25. Detach P996 from (L46)J996.
Check for short between (L46)J996–J and
(L46)J996–K.
Does short exist?
YES
Replace bottom STABILATOR
ACTUATOR (L46)
(TM 1-1520-238-23).
NO
Go to step 26.
26. Detach P995 from (L46)J995.
Check for short between (L46)J995–J and
(L46)J995–K.
Does short exist?
YES
Replace top STABILATOR
ACTUATOR (L46)
(TM 1-1520-238-23).
NO
Go to step 27.
27. Remove MAN CONT NOSE UP (A323)K1–3.
Check for short between:
(A323)XK1–3–B2 and ground,
P485–M and ground,
(A329)J1–c and ground,
(A329)XK1–1/2–A2 and ground,
P1077–f and ground.
Does short exist?
YES
Repair shorted wire between:
(A323)XK1–3–B2 and
(A323)J7–M,
P485–M and P1077–c,
(A329)J1–c and XK1–1/2–A3,
(A329)XK1–1/2–A2 and J1–f,
P1077–f and P995–J.
Go to paragraph 11–88.
NO
Go to step 28.
28. Check for short between:
(A323)XK1–3–A2 and ground,
(A323)XK1–1/2–A2 and ground,
P485–F and ground.
Does short exist?
YES
Repair shorted wire between:,
(A323)XK1–3–A2 and
XK1–1/2–A3,
(A323)XK1–1/2–A2 and J7–F,
P485–F and P996–J.
Go to paragraph 11–88.
NO
Go to step 29.
