R 1EFF : 401-499, 1 34-48-00Page A79 1 1 Config-1 Aug 01/05 1 1 1CES 1 1EFF : 401-499, 1 34-48-00Page A80 1 1 Config-1 Aug 01/05 1 1 1CES 1 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-214,
R (b) Level 2
R Level 2 (current faults) provides a listing of the internal and
R external fault currently detected by the Enhanced GPWC.
R Level 2 self-test is initiated by pressing the PULL UP/GPWS
R pushbutton switch within 3 seconds after the end of level 1
R self-test.
R (c) Level 3
R Level 3 ( Enhanced GPWS configuration) indicates the current
R configuration by listing the current hardware, software,
R databases and program pin inputs detected by the Enhanced GPWC.
R This level is initiated by pressing the PULL UP/GPWS pushbutton
R switch when the PRESS TO CONTINUE message is enunciated.
R (d) Level 4
R Level 4 (fault history) provides a historical record of both
R internal and external faults detected by the Enhanced GPWC.
R This level is initiated by pressing the PULL UP/GPWS pushbutton
R switch when the PRESS TO CONTINUE message is enunciated.
R (e) Level 5
R Level 5 (warning history) provides a historical record of the
R warnings and cautions given by the Enhanced GPWC.
R This level is initiated by pressing the PULL UP/GPWS pushbutton
R switch when the PRESS TO CONTINUE message is enunciated.
R (f) Level 6
R Level 6 (discrete test) provides annunciation of discrete input
R transitions to be used for maintenance support.
R This level is initiated by pressing the PULL UP/GPWS pushbutton
R switch when the PRESS TO CONTINUE message is enunciated.
R (3) To speed up the navigation of self-test levels and information, two
R types of cancel sequences are supported. Pressing and holding the
R PULL UP/GPWS pushbutton switch for less than 2 seconds is considered
R to be a short cancel. Pressing and holding the PULL UP/GPWS
R pushbutton switch for more than 2 seconds is considered to be a long
R cancel.
Post SB 34-1193 For A/C 001-049,051-060,101-104,
A. Self-Tests
(1)
On the ground only, the Enhanced GPWC provides self-test capability, providing an indication of the ability of the Enhanced GPWC to perform its intended function.
(2)
The Enhanced GPWC self-test is initiated by momentarily pressing GPWS/G/S pushbutton switches or activated via the MCDU on the ground. When activated by pressing the GPWS/G/S pushbutton switches, the self-test is enunciated, via the same audio system as the Enhanced GPWS alerts. This self-test can also be accessed via the headphone jack on the front panel of the Enhanced GPWC and it has been divided into six different levels to help with Enhanced GPWC testing and troubleshooting.
(a) Level 1 Level 1, functional testing, provides an overview of the current operational functions selected and provides an indication of their operational status. Level 1 self-test sequence:
-
the FAULT legend of the GPWS/SYS pushbutton switch is on,
-
the FAULT legend of the GPWS/TERR pushbutton switch is on,
-G/S legends of both GPWS/G/S pushbutton switches are on,
-GLIDE SLOPE audio phase is broadcast,
-G/S legends of both GPWS/G/S pushbutton switches go off,
-GPWS legends of both GPWS/G/S pushbutton switches are on,
-PULL UP audio phase is broadcast,
-TERRAIN AHEAD PULL UP audio phase is broadcast,
-GPWS legends of both GPWS/G/S pushbutton switches go off,
-ON legends of both TERR ON ND pushbutton switches are on,
-terrain self-test pattern is displayed on both NDs, R (Ref. Fig. 030A)
-vocabulary sequence when long self-test initiated:
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SINK RATE PULL UP TERRAIN PULL UP
DON'T SINK
DON'T SINK
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