787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Supplementary Procedures -
Engines, APU
Copyright © The Boeing Company. See title page for details.
SP.7.2 D615Z003-TBC
Ground Power Engine Start
Engine starts from ground power require the forward left and right external
power sources to be providing power. The aft external power source should
also be used, if available. This reduces electrical load shedding and assists
the start of the right engine.
Do not start both engines at the same time.
Start the right engine first, if possible.
Note: This procedure assumes the APU is not available for engine
start.
[Option – English / Metric units]
Verify that cabin temperatures are at or below 90° F / 32° C for 15 minutes
prior to engine start.
External power sources ...............................................................Connect
Select FWD EXT PWR L and FWD EXT PWR R switches ON.
Select AFT EXT PWR switch ON, if available.
Note: Advise the cabin to expect the loss of some cabin functions
during engine start.
Proceed with a normal right engine start.
Note: During ground power starts, expect significant equipment
reconfigurations and electrical load shedding to occur including
F/O displays, right CCR, and numerous cabin loads.
After the first engine start is complete:
External power sources ..................................................... Disconnect
Verify that all external power AVAIL lights are illuminated.
Disconnect external power sources.
Accomplish engine cross start procedure.
February 15, 2010
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