TM 55-1520-240-T
16-1.4 EXTERNAL CARGO HOOK SYSTEM OPERATIONAL CHECK (Continued)
16-1.4
TASK
RESULT
34. Set HOOK SELECT switch (2) to MID.
35. Press and release pilot's CARGO HOOK RELEASE
Center cargo hook shall open and remain open. MID
switch (21).
HOOK OPEN capsule (12) shall come on. Pilot and
copilot master caution lights (24) shall come on. If center
cargo hook does not open, go to Task 16-1.23. If hook
opens and MID HOOK OPEN capsule does not come on,
go to Task 16-1.24.
36. Set MASTER switch (1) to RESET then to ARM.
Center cargo hook shall close and remain closed. MID
HOOK OPEN capsule (12) shall go out. Pilot and copilot
master caution lights (24) shall go out. If center cargo
hook does not close, replace it. If capsule is still lit when
center cargo hook closed, go to Task 16-1.12.
37. Set HOOK SELECT switch (2) to AFT.
38. Press and release pilot's CARGO HOOK RELEASE
Aft cargo hook shall open and drop load then relatch
switch (21).
closed. AFT HOOK OPEN capsule (13) shall come on.
Pilot and copilot master caution lights (24) shall come on.
If aft cargo hook does not open, go to Task 16-1.25. If
hook opens and AFT HOOK OPEN capsule does not
come on, go to Task 16-1.26.
39. Set MASTER switch (1) to RESET then to ARM.
Aft cargo hook shall stay closed. AFT HOOK OPEN
capsule (13) shall go out. Pilot and copilot master
caution lights (24) shall go out. If capsule is still lit, go to
Task 16-1.13.
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