Boeing 737-800 - Predictive Windshear; Path Attenuation Compensation (PAC)

737 Flight Crew Operations Manual
Flight Instruments, Displays -
PFD/ND – Navigation Displays
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
10.41.20 D6-27370-866-EGP
Predictive Windshear
Path Attenuation Compensation (PAC)
SYMBOL NAME MODE REMARKS
Predictive
windshear
symbol (R, B, A)
MAP,
MAP CTR,
VOR,
APP
Displays windshear location
and approximate geometric
size (width and depth).
Amber radials extend from
predictive windshear symbol
to help identify location of
windshear event.
Windshear
annunciation (R,
A)
All Predictive windshear caution
active (A).
Predictive windshear
warning active (R).
Predictive
windshear status
annunciation (A)
All Predictive windshear alerting
and display have failed.
Weather radar Path
Attenuation
Compensation (A)
MAP, MAP
CTR, VOR,
APP
Attenuated region
behind rainfall (radar
shadow) is indicated by
amber arc on outer range
ring.
WINDSHEAR
PWS FAIL
September 24, 2015