General

  1. A Few General Rules
  2. Chapter 1. General Notions of Grammar
  3. General
  4. General
  5. General
  6. General

The DEUs compare the ND ranges from these components:

EFIS CP

WXR R / T

Flight management computer (FMC).

A difference between any of these ranges causes an amber range disagreement message on alert line 3.

These WXR range disagreement messages are possible:

WXR RANGE DISAGREE; shows when there is a difference between the EFIS CP range and the WXR R / T range

MAP / WXR RANGE DISAGREE; shows when there is a difference between the EFIS CP range, the WXR R / T range, and the FMC range.

WXR RANGE DISAGREE will show in these modes:

Expanded approach

Expanded VOR

Expanded map

Centered map.

MAP / WXR RANGE DISAGREE will show in these modes:

Expanded map

Centered map.

This happens during a range disagreement:

WXR display goes out of view

Mode, tilt, and gain messages show

FMC range shows.




Abbreviations and Acronyms | Antenna | WXR System Components | Air Data Inertial Reference System | WXR Output Data and Display | Physical Description | Antenna Pedestal | WXR System Messages | Sweep Patterns | WXR Central Processor Unit |

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