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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(6) Climb flight phase.
(a) Climb to cruise thrust mode transitions.
1) Action or condition:
VNAV requests the CRZ thrust mode while VNAV is engaged and the airplane reaches the VNAV top of climb alititude with the CRZ option selected on the PERF FACTORS page under the THR/CRZ header.
OR
VNAV requests the CRZ thrust mode while VNAV is engaged and the airplane reaches the VNAV top of descent altitude with the CLB option selected on the PERF FACTORS page under the THR/CRZ header.
THRUST MODE TRANSITIONS
CURRENT CDU MODE --> __________________ EICAS DISPLAY
________________ RESULTANT CDU MODE _____________
SEL___ ARM ___ ARM
___ SEL ___
CLB ---CRZ ---CRZ
CLB 1 ---CRZ ---CRZ
CLB 2 ---CRZ ---CRZ
NOTE: When the CLB option is selected on the PERF FACTORS
____ page, the VNAV function will continue to select the CLB thrust mode after reaching the top of climb altitude. It will continue to select the CLB thrust mode until the airplane reaches the top of descent altitude at which time the VNAV function will select the CRZ thrust mode.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
(b) Climb to continuous thrust mode transitions.
1) Action or condition: Push the THR or FLCH button on the MCP during an engine out condition.
OR VNAV requests the CON thrust mode while VNAV is engaged. OR Select CON on the CDU THRUST LIM page. THRUST MODE TRANSITIONS CURRENT CDU MODE --> __________________ EICAS DISPLAY
________________ RESULTANT CDU MODE _____________ SEL___ ARM ___ ARM
___ SEL ___ CLB ---CON ---CON CLB 1 ---CON ---CON CLB 2 ---CON ---CON
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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747-400 MAINTENANCE MANUAL
(c) Climb to go around thrust mode transitions. 1) Action or condition:
The airplane is airborne and the flap setting is
greater than 20.
OR
The airplane is airborne and flap extension is
initiated.
OR
The airplane is airborne and the glideslope is
captured.
OR
The airplane is airborne and GA is selected on the CDU
THRUST LIM page.
OR
The airplane is airborne and the TO/GA switch is
pressed.
THRUST MODE TRANSITIONS
CURRENT CDU MODE --> __________________ EICAS DISPLAY
________________ RESULTANT CDU MODE _____________
SEL___ ARM ___ ARM
___ SEL ___
CLB ---GA ---GA
CLB 1 ---GA ---GA
CLB 2 ---GA ---GA
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(7) Cruise flight phase.
(a) Cruise to climb thrust mode transitions.
1) Action or condition: Push the THR or FLCH button on the MCP while all engines are working.
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