787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Landing Gear -
System Description
Copyright © The Boeing Company. See title page for details.
14.20.6 D615Z003-TBC
Brake Temperature Indication
Wheel brake temperatures are displayed on the GEAR synoptic display.
Numerical values related to wheel brake temperature are displayed adjacent to
each wheel/brake symbol. These values range from 0.0 to 9.9 in increments of 0.1.
The values tend to increase after the brakes are used.
Normal range values of 0.0 to 2.1 are white. For values of 1.5 to 2.1, the brake
symbol for the hottest brake on each gear truck becomes solid white. An EICAS
advisory message, BRAKE TEMP, displays when any brake registers 2.2 or
higher on the gear synoptic display and disappear as the hottest brake cools to 1.5.
The brake temperature value blanks when invalid brake temperature data or faults
are detected in the brake temperature system.
Tire Pressure Indication
Tire pressures are displayed inside each individual gear symbol on the GEAR
synoptic. Normal values are depicted in white. Above or below normal range
values are depicted in amber.
The EICAS advisory message TIRE PRESS is displayed if any tire pressure is
above or below normal range, or there is an excessive pressure difference between
two tires on the same axle.
February 15, 2010
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