TM 1–1520–238–T–3
Change 4
6–11
6–39 SIGNAL NAME:
HARS SIN ROLL
MEMORY LOCATION: 002155
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD; HARS SIN ROLL positive indicates left roll (HARS SIN ROLL negative
indicates right roll).
SIGNAL FUNCTION:
Monitors HARS sine of roll.
REMARKS: From HARS through DASEC to FCC.
PASS:
If conditions are met, go to paragraph 6–40.
FAIL: Location of fault: CPG RAI, wiring from CPG RAI to HARS, HARS, wiring from HARS to
DASEC, DASEC. Troubleshoot wiring to isolate fault (TM 11–1520–238–23–2).
6–40 SIGNAL NAME:
HARS COS ROLL
MEMORY LOCATION: 002156
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD; HARS COS ROLL positive indicates 0 to 180 degrees (HARS COS
ROLL negative indicates 180 to 360 degrees).
SIGNAL FUNCTION:
Monitors HARS cosine of roll.
REMARKS: From HARS through DASEC to FCC.
PASS:
If conditions are met, go to paragraph 6–41.
FAIL: Location of fault: HARS, wiring from HARS to DASEC, DASEC. Troubleshoot wiring to isolate
fault (TM 11–1520–238–23–2).
6–41 SIGNAL NAME:
HARS ROLL ACC
MEMORY LOCATION: 002172
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD; HARS ROLL ACC positive indicates roll left movement (HARS ROLL
ACC negative indicates roll right movement).
SIGNAL FUNCTION:
Monitors HARS roll acceleration.
REMARKS: From HARS through DASEC to FCC.
PASS:
If conditions are met, go to Chapter 20, paragraph 20–80.
FAIL: Location of fault: HARS, wiring from HARS to DASEC, DASEC. Troubleshoot wiring to isolate
fault (TM 11–1520–238–23–2).
6–42 SIGNAL NAME:
HARS YAW ACC
MEMORY LOCATION: 002173
MEMORY DATA BIT(S):
4–19 (ACY) 4–15 (ACZ)
(SCALAR)
CONDITION:
Monitor HOD; HARS YAW ACC positive indicates yaw left movement (HARS YAW ACC
negative indicates yaw right movement).
SIGNAL FUNCTION:
Monitors HARS yaw acceleration.
REMARKS: From HARS through DASEC to FCC.
PASS:
Location of fault if conditions are met: wiring from aft avionics module to signal data converter
SDC, wiring from SDC to RMI. Troubleshoot wiring to isolate fault (TM 11–1520–238–23–2).
FAIL: Location of fault: HARS, wiring from HARS to DASEC, DASEC. Troubleshoot wiring to isolate
fault (TM 11–1520–238–23–2).
