| Display Selector |
| Weather Radar Panel - Typical |
Aft Electronic Panel 700/800/900
Mode Switches
Push – selects mode.
TEST –
Option – Test with predictive windshear
Note: If the airplane is on the ground and the thrust levers are not
advanced for takeoff, WXR tests the predictive windshear system
(PWS) indications. These include PWS caution, PWS FAIL, and
PWS warning. Deactivating WXR on the EFIS control panel will not
discontinue the test and can result in automatic WXR activation on
both pilot displays. The PWS test lasts approximately 15 seconds.
WX (weather) – Shows weather radar returns at selected gain
level.
WX+T (Turbulence) –
MAP – Shows ground returns.
Push – selects mode.
TEST –
- Tests weather radar system operation without transmitting.
- Shows test pattern and any fault messages on navigation
display MAP, center MAP, VOR, and APP modes, with WXR
selected.
Option – Test with predictive windshear
Note: If the airplane is on the ground and the thrust levers are not
advanced for takeoff, WXR tests the predictive windshear system
(PWS) indications. These include PWS caution, PWS FAIL, and
PWS warning. Deactivating WXR on the EFIS control panel will not
discontinue the test and can result in automatic WXR activation on
both pilot displays. The PWS test lasts approximately 15 seconds.
WX (weather) – Shows weather radar returns at selected gain
level.
WX+T (Turbulence) –
- Shows weather radar returns.
- Shows turbulence within 50 miles.
MAP – Shows ground returns.
