C.
Cardinal Bearings Test
(1) On the LH Garmin 400W, press the MENU button. Highlight CLEAR STORM DATA?
(if not already highlighted), then press the ENT button.
(2) Verify that the Strike Rate is displayed on the Garmin 400W as shown in
(a) When Strike Rate reaches approximately 580+/-40 strikes per minute, verify that
the strikes appear within the required bearing limits for each of the settings on
the WX-PA as shown in
.
NOTE: Strikes may appear approximately at half of the range selected.
NOTE: Clear the storm data from the Garmin 400W after each test.
(3) On the WX-PA, push 2
nd
, then push MENU/ENTR to return to Main Menu.
Table 503. Cardinal Bearings Tests
TEST - 1
• Set WX-PA range = 55 NM
• Set Garmin 400W range = 150 NM
Result
(PASS/FAIL)
Set WX-PA bearing = 000°
Verify the displayed bearing = 000 ±10°
Set WX-PA bearing = 090°
Verify the displayed bearing = 090 ±10°
Set WX-PA bearing = 180°
Verify the displayed bearing = 180 ±10°
Set WX-PA bearing = 270°
Verify the displayed bearing = 270 ±10°
TEST - 2
• Set WX-PA range = 30 NM
• Set Garmin 400W range = 100 NM
Result
(PASS/FAIL)
Set WX-PA bearing = 000°
Verify the displayed bearing = 000 ±10°
Set WX-PA bearing = 090°
Verify the displayed bearing = 090 ±10°
Set WX-PA bearing = 180°
Verify the displayed bearing = 180 ±10°
Set WX-PA bearing = 270°
Verify the displayed bearing = 270 ±10°
TEST - 3
• Set WX-PA range = 15 NM
• Set Garmin 400W range = 50 NM
Result
(PASS/FAIL)
Set WX-PA bearing = 000°
Verify the displayed bearing = 000 ±10°
Set WX-PA bearing = 090°
Verify the displayed bearing = 090 ±10°
Set WX-PA bearing = 180°
Verify the displayed bearing = 180 ±10°
Set WX-PA bearing = 270°
Verify the displayed bearing = 270 ±10°
EA500 Aircraft Maintenance Manual — 06-117751
Temporary Revision No. 34-21
EFFECTIVITY: 0001 - 0008, 0010 - 0050, 0052, 0054 -
0267 PRE SB 500-31-024
34-40-50
CONFIG A
Page 512
Sep 30/20
© 2020 Eclipse Aerospace, Inc.