Boeing 737-800 - Expanded Localizer Indications; Radio Altitude Indications

737 Flight Crew Operations Manual
Flight Instruments, Displays -
PFD/ND – Displays
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D6-27370-866-EGP 10.11.17
Rises towards airplane symbol when radio altitude is below 200 feet.
Expanded Localizer Indications
1 Expanded Localizer Scale
Displayed when the autopilot or flight director is in LOC mode, deviation is
slightly more than ½ dot and track is within 5 degrees of the MCP selected course.
As deviation increases, the deviation pointer remains filled in solid magenta and
parks at the limit of the expanded scale. Once the deviation reaches the equivalent
of 2.4 dots from center on the standard scale, the pointer becomes unfilled.
Reverts to standard scale when out of LOC mode, and groundspeed is less than 30
knots or radio altitude is greater than 200 feet.
A rectangle equals ½ dot deviation.
Radio Altitude Indications
1 Radio Altitude
Displays current radio altitude:
• displayed below 2500 feet AGL
• box highlighted white for 10 seconds upon descent below 2500 feet
• turns amber when below radio altitude minimums.
1
1
0
2
0
1200
1
September 15, 2016