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Copyright . The Boeing Company. See title page for details.
SP.1.2 D6-30151-425 October 1, 2000
747 Operations Manual
Air Conditioning Packs APU-to-Pack Takeoff
After engine start:
LEFT and RIGHT ISOLATION valve switches -OFF
Leave APU runningtosupplyair to pack 2.
Before takeoff: PACKS 1 and 3 control selectors -OFF After takeoff: PACK control selector (One only) -NORM After engine thrust is reduced from takeoff to climb, position one Pack Control selector to NORM. PACK control selector (Remaining pack) -NORM When cabin pressurization stabilizes, position remaining Pack Control
selector to NORM.
LEFT and RIGHT ISOLATION valve switches -ON
APU selector -OFF
Ground Air Conditioning Cart Use
Before connecting ground air conditioning cart:
PACK control selectors -OFF
Allows cart to operate at maximum efficiency.
RECIRCULATION FANS switches -OFF
Allows cart to operate at maximum efficiency.
After disconnecting ground air conditioning cart:
PACK control selectors -AUTO
RECIRCULATION FANS switches -ON
Copyright . The Boeing Company. See title page for details.
April 01, 2001 D6-30151-425 SP.2.1
Supplementary Procedures -Air Systems
High Cabin Temperatures During Cruise
If cabin temperatures stabilize above target temperatures during cruise: HIGH FLOW switch -ON High flow setting increases fuel flow approximately 1%. When temperatures return to target temperatures: HIGH FLOW switch -OFF
Copyright . The Boeing Company. See title page for details.
SP.2.2 D6-30151-425 October 1, 2000
Supplementary Procedures -Air Systems 747 Operations Manual
Packs Off Takeoff
Before takeoff:
PACK Control selectors -OFF
After takeoff:
PACK Control selector (One only) -NORM After engine thrust is reduced from takeoff to climb and prior to reaching 3,000 feet above field elevation, position one Pack Control selector to NORM.
PACK control selectors (Remaining packs) -NORM When cabin pressurization stabilizes, position remaining Pack Control selectors to NORM.
Copyright . The Boeing Company. See title page for details.
October 1, 2000 D6-30151-425 SP.2.3
Supplementary Procedures -Air Systems 747 Operations Manual
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Copyright . The Boeing Company. See title page for details.
SP.2.4 D6-30151-425 October 1, 2000
747 Operations Manual
AFDS AFDS Operation
FLIGHT DIRECTOR switches ..........................................................ON Verify FD pitch and roll bars display.
If autopilot desired:
AUTOPILOT engage switch .......................................................Push Verify CMD displays on AFDS status.
Heading Hold
If airplane position north of 82° N latitude (or north of 70° N between 80° W and 130° W) or south of 82° S latitude (or south of 60° S between 120° E and 160° E):
HEADING reference switch..................................................... TRUE
HEADING HOLD switch.................................................................Push Verify HDG HOLD displays on flight mode annunciation.
Heading Select
If airplane position north of 82° N latitude (or north of 70° N between 80° W and 130° W) or south of 82° S latitude (or south of 60° S between 120° E and 160° E):
HEADING reference switch..................................................... TRUE
HEADING SELECT switch .............................................................Push Verify HDG SEL displays on flight mode annunciation.
HEADING selector........................................................................Rotate Set desired heading in HDG window.
Altitude Hold
ALTITUDE HOLD switch ...............................................................Push Verify ALT displays on flight mode annunciation.
Copyright . The Boeing Company. See title page for details.
October 1, 2000 D6-30151-425 SP.4.1
Supplementary Procedures -Automatic Flight
Flight Level Change, Climb or Descent
ALTITUDE selector .......................................................................Rotate Set desired altitude in ALT window.
FLCH switch .................................................................................... Push Verify FLCH SPD displays on flight mode annunciation.
IAS/MACH selector .......................................................................Rotate Set desired speed in IAS/MACH window.
Vertical Speed, Climb or Descent
ALTITUDE selector .......................................................................Rotate Set desired altitude in ALT window.
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