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3) Make a list of all the CMCS messages, CMCS message numbers, and ATA numbers that show on the GROUND TEST MSG pages. 4) Go to the CMCS Message Index of the Fault Isolation Manual (FIM) to find the corrective action for each CMCS message.
F. AIRPLANES WITH PREDICTIVE WINDSHEAR ACTIVE; Weather Radar Ground Test
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(1) Push the LSK that is adjacent to the applicable prompt (<WXR-L or <WXR-R).
(a)
When the TEST PRECONDITIONS page shows, make sure each instruction on the page is completed. (Push the NEXT PAGE key to see the subsequent pages.)
(b)
Push the LSK that is adjacent to START TEST>.
NOTE: IN PROGRESS shows during the test.
____
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(2) When IN PROGRESS goes out of view look for PASS or FAIL> adjacent to <WXR-L or<WXR-R.
NOTE: If a PASS indication shows, no failure ocurred during
____
the test.
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(3) Monitor these predictive windshear (PWS) ND and aural caution and warning messages.
NOTE:____Read through these messages before you do the test. If
necessary, you can do the test more than once to do a check on the messages.
(a) Make sure this PWS test sequence occurs in 0-2 seconds (Fig. 501): 1) The Amber WINDSHEAR message on the NDs is on.
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(b)
(c)
(d)
(e)
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MAINTENANCE MANUAL
2) The WINDSHEAR SYS (Advisory) message on the upper EICAS display comes on.
3) The WINDSHEAR PRED (Status) message on the lower EICAS display comes on.
4) The Aural Warning message is MONITOR RADAR DISPLAY.
5) A WXR test pattern is shown on both NDs.
Make sure these indications occur in 2 to 12 seconds (Fig 501):
1) The Amber WINDSHEAR message on the NDs stays on.
2) The RED WINDSHEAR messages on the captains and first officers NDs and PFDs comes on.
3) A WINDSHEAR SYS (Advisory) message is on the upper EICAS display goes off.
4) The WINDSHEAR PRED (Status) message on the lower EICAS display goes off.
5) The captains and first officers master warning lights come on.
6) The aural message on the captain's and first officer's loudspeaker is one of the two messages below: a) Go Around-Windshear Ahead, (pause) Windshear Ahead, Windhshear Ahead. b) WINDSHEAR AHEAD, WINDSHEAR AHEAD.
7) A WXR test pattern shown on the NDs.
8) A 0 degrees tilt code message is on the captains and first officers NDs.
If FAIL> shows:
1) Push the LSK that is adjacent to FAIL> to see the GROUND TEST MSG pages for the failure.
2) Push the NEXT PAGE key until you find all the GROUND TEST MSG pages.
3) Make a list of all the CMCS messages, CMCS message numbers, and ATA numbers that show on the GROUND TEST MSG pages.
Go to the CMCS Message Index of the Fault Isolation Manual
(FIM) to find the corrective action for each CMCS message.
If external failures occur, an antenna tilt code message(s)
will show in place of the 0 degrees antenna tilt message on the
NDs (See Fig. 502).
1) The tilt code messages on Fig. 502 identify which external LRU if faulty.
2) Refer to the weather radar BITE procedures in the fault isolation manual (FIM).
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G. Weather Radar Ground Test Shutdown
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(1) Shut down the weather radar system as follows:
(a)
Set the switches and the controls on the WXR control panel as follows: 1) SYS switch - L 2) TILT control - 0 3) GAIN - AUTO 4) Mode selector switch - TEST
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