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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
October 1, 2000
747 Operations Manual
Supplementary Procedures -
Air Systems
Copyright © The Boeing Company. See title page for details.
D6-30151-425 SP.2.3
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.
October 1, 2000
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
SP.2.4 D6-30151-425
Supplementary Procedures -
Air Systems
Intentionally
Blank
October 1, 2000
747 Operations Manual
Supplementary Procedures Chapter SP
Automatic Flight Section 4
Copyright © The Boeing Company. See title page for details.
D6-30151-425 SP.4.1
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.
October 1, 2000
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
SP.4.2 D6-30151-425
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.
VERTICAL SPEED switch.............................................................. Push
Verify V/S displays on PFD.
VERTICAL SPEED selector..........................................................Rotate
Set desired vertical speed in VERT SPD window.
If climb desired:
Select climb thrust limit on CDU THRUST LIM page.
October 1, 2000
747 Operations Manual
Supplementary Procedures -
Automatic Flight
Copyright © The Boeing Company. See title page for details.
D6-30151-425 SP.4.3
Autothrottle Operation
To activate or reactivate an autothrottle mode:
AUTOTHROTTLE ARM switch ....................................................ARM
If pitch mode TO/GA:
TO/GA switch .............................................................................Push
Verify THR REF displays on flight mode annunciation.
If pitch mode ALT, V/S, G/S, or no pitch mode:
SPEED switch .............................................................................Push
Verify SPD displays on flight mode annunciation.
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