CREW
AWARENESS
AIRPLANE
OPERATIONS
MANUAL
2-04-15
Page
6
Code
01
REVISION 39
AOM-145/1114
NOTE: 1) For Post-Mod. SB 145-22-0001 airplanes or S/N 145001
through 145003, 145041 and on, the voice message can be
cancelled (refer to Section 2-19 Autopilot for further
information).
2) Applicable to airplanes equipped with HSCU-1009 or -5009
and AWU-5.
3) For airplanes Post-Mod. SB 145-23-0028.
4) For airplanes equipped with AWU-5, the altitude alerter is
three 2900 Hz tones.
For airplanes Post-Mod. SB 145-31-0051 (equipped with
AWU-6) or with an equivalent modification factory
incorporated, the tone is a single C CHORD.
EICAS MESSAGE
TYPE MESSAGE MEANING
CAUTION AURAL WARN FAIL
Both AWU channels are
inoperative.
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