Honeywell BENDIX/KING KAP 140 Maintenance Manual page 94

ERR# TEXT MESSAGE(S)
DESCRIPTION OF ERROR
16 Timer failed
The processor failed the timer test on power up. Autopilot operation is disallowed.
20 Watchdog timed out
The watchdog was not reset in the allowed time period. This indicates a probable hardware
fault in the flight computer. Autopilot operation is disallowed.
25 Roll srv cmd over upper range
Preflight test failed due to improper response to roll servo command wraparound signal.
This indicates a probable failure in the roll servo command circuit or the analog to digital
input circuitry of the flight computer. Autopilot operation is disallowed.
26 Roll srv cmd below upper range
Preflight test failed due to improper response to roll servo command wraparound signal.
This indicates a probable failure in the roll servo command circuit or the analog to digital
input circuitry of the flight computer. Autopilot operation is disallowed.
27 Roll srv cmd over lower range
Preflight test failed due to improper response to roll servo command wraparound signal.
This indicates a probable failure in the roll servo command circuit or the analog to digital
input circuitry of the flight computer. Autopilot operation is disallowed.
28 Roll srv cmd below lower range
Preflight test failed due to improper response to roll servo command wraparound signal.
This indicates a probable failure in the roll servo command circuit or the analog to digital
input circuitry of the flight computer. Autopilot operation is disallowed.
29 Norm accel over 1g upper limit
Preflight test failed due to improper response of the accelerometer after self test. If this error
occurs in flight, it should be ignored. Otherwise, this indicates a probable failure in the
accelerometer or the associated circuitry of the flight computer. Pitch Axis operation is
disallowed.
30 Norm accel below 1g upper limit
Preflight test failed due to improper response of the accelerometer after self test. If this error
occurs in flight, it should be ignored. Otherwise, this indicates a probable failure in the
accelerometer or the associated circuitry of the flight computer. Pitch Axis operation is
disallowed.
31 Norm accel over tst upper limit
Preflight test failed due to improper response of the accelerometer during self test. This
indicates a probable failure in the accelerometer or the associated circuitry of the flight
computer. Pitch Axis operation is disallowed. NOTE: In --5201, --5402, and --7702 FCC
flavors, this error can be caused by missing or improper tach feedback from the pitch servo.
Revision 2, Dec/2002
CS:15574F02.IDU
BENDIX/KING
KAP 140
POSSIBLE FAILED UNIT(S)
KC 140
KC 140
KC 140
KC 140
KC 140
KC 140
KC 140
KC 140
KC 140, KS 270C
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