FORWARD ENGINE MOUNT
OUTBOARD NACELLE STRUT
WING

FORWARD ENGINE MOUNT
INBOARD NACELLE STRUT
Nacelle Strut
Figure 1 (Sheet 1)

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747-400
MAINTENANCE MANUAL

UPPER LINK ATTACH FITTING  MIDSPAR PIN FITTINGS (2 PLACES) ATTACH FITTING SIDE BRACE 
FORWARD UPPER SPAR  MID SPAR ATTACH FITTING DIAGONAL BRACE 
SPAR LOWER 
BULKHEAD 
FORWARD ENGINE MOUNT BULKHEAD  CLOSURE SPAR  ATTACH FITTING SIDE BRACE SPRING BEAMS (2 PLACES) 
INBOARD STRUT A SPAR MID  UPPER LINK ATTACH FITTING  TORQUE BULKHEAD 
FWD 
FORWARD UPPER SPAR  ATTACH FITTING DIAGONAL BRACE 
SPAR LOWER 
AFT ENGINE MOUNT BULKHEAD 
SPAR MID 
FORWARD ENGINE MOUNT BULKHEAD 
OUTBOARD STRUT A 
Nacelle Strut Figure 1 (Sheet 2) 

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747-400 FAULT ISOLATION/MAINT MANUAL
NACELLE STRUT ASSEMBLY
FIG.
AMM
COMPONENT  102 QTY ACCESS/AREA
REFERENCE
SHT
ATTACH BOLT - DIAGONAL BRACE FORWARD, 1 2 454AL,454AR, STRUT 1
54-51-02 OUTBOARD STRUT 484AL,484AR, STRUT 4 ATTACH BOLT - UPPER LINK AFT 1 4 521FT, STRUT 1
54-51-02 511CT, STRUT 2 611CT, STRUT 3 621FT, STRUT 4 BEAM - SPRING 2 4 452TR,452TL, STRUT 1
54-51-03 482TL,482TR, STRUT 4 BOLT - SPRING BEAM BEARING 2 4 452TR,452TL, STRUT 1
54-51-03 482TL,482TR, STRUT 4 FUSE PIN - DIAGONAL BRACE AFT 1 4 454AL,454AR, STRUT 1
54-51-02 464AL,464AR, STRUT 2 474AL,474AR, STRUT 3 484AL,484AR, STRUT 4 FUSE PIN - DIAGONAL BRACE FORWARD, INBOARD 1 2 464AL,464AR, STRUT 2
54-51-02 STRUT 474AL,474AR, STRUT 3 FUSE PIN - MIDSPAR 1 8 452FL,452FR, STRUT 1
54-51-02 462JL,462HR, STRUT 2 472JL,472HR, STRUT 3 482FL,482FR, STRUT 4 FUSE PIN - UPPER LINK FORWARD 1 4 521FT, STRUT 1
54-51-02 511CT, STRUT 2 611CT, STRUT 3 621FT, STRUT 4
Nacelle Strut Assembly - Component Index
Figure 101

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747-400 FAULT ISOLATION/MAINT MANUAL
UPPER LINK AFT SPRING BEAM

INBOARD NACELLE STRUT
Component Location
Figure 102 (Sheet 1)

F83267
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747-400 FAULT ISOLATION/MAINT MANUAL
BULKHEAD
BEARING

SPRING BEAM ACCESS PANEL
452TR STRUT 1 INBOARD
452TL STRUT 1 OUTBOARD
482TL STRUT 4 INBOARD
482TR STRUT 4 OUTBOARD

NOTE:  LEFT SIDE INSTALLATION SHOWN. RIGHT SIDE INSTALLATION SIMILAR.

Component Location (Details from Sht 1)
Figure 102 (Sheet 2)

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747-400 MAINTENANCE MANUAL
　
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