TM 1–1520–238–T–3
15–8
Change 4
15–19 SIGNAL NAME:
PITCH TO TEU (ACY) PITCH AID (ACZ)
MEMORY LOCATION: 001250
MEMORY DATA BIT(S):
4–16
(SCALAR)
CONDITION:
Monitor HOD; memory location response digits should indicate a positive number for
nose up pitch and negative number for nose down pitch.
SIGNAL FUNCTION:
Indicates aircraft pitch angle.
REMARKS: From FCC through LH FAB MRTU Type I to TEU.
PASS:
If CONDITION 16 corresponds to proper angle, go to paragraph 15–20.
FAIL: Location of fault: go to Chapter 6, paragraph 6–16.
15–20 SIGNAL NAME:
PITCH VALID TO TEU (ACY) PITCH AID VALID (ACZ)
MEMORY LOCATION: 001250
MEMORY DATA BIT(S):
19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates pitch angle valid.
REMARKS: From FCC through LH FAB MRTU Type I to TEU.
PASS:
If first digit on HOD is 1, 3, 5, or 7, go to paragraph 15–21.
FAIL: Location of fault: go to Chapter 6, paragraph 6–16.
15–21 SIGNAL NAME:
TADS YAW RATE
MEMORY LOCATION: 000406
MEMORY DATA BIT(S):
4–19
(SCALAR)
CONDITION:
Monitor HOD; memory location response digits should indicate a positive number for
right yaw and negative number for left yaw.
SIGNAL FUNCTION:
Indicates yaw position.
REMARKS: From TADS through CPG MRTU Type III to FCC.
PASS:
If CONDITION corresponds to proper angle, go to paragraph 15–22.
FAIL: Location of fault: replace TEU (TM 1–1270–476–20).
15–22 SIGNAL NAME:
TADS PITCH RATE
MEMORY LOCATION: 000407
MEMORY DATA BIT(S):
4–19
(SCALAR)
CONDITION:
Monitor HOD; memory location response digits should indicate a positive number for
nose up pitch and negative number for nose down pitch.
SIGNAL FUNCTION:
Indicates pitch position.
REMARKS: From TADS through CPG MRTU Type III to FCC.
PASS:
If CONDITION corresponds to proper angle, go to paragraph 15–23.
FAIL: Location of fault: replace TEU (TM 1–1270–476–20).
15–23 SIGNAL NAME:
TADS ROLL RATE
MEMORY LOCATION: 000410
MEMORY DATA BIT(S):
4–19
(SCALAR)
CONDITION:
Monitor HOD; memory location response digits should indicate a positive number for
right roll and negative number for left roll.
SIGNAL FUNCTION:
Indicates roll position.
REMARKS: From TADS through CPG MRTU Type III to FCC.
PASS:
If CONDITION 19 corresponds to proper angle, go to paragraph 15–24.
FAIL: Location of fault: replace TEU (TM 1–1270–476–20).
