(c)  
Lift the oxygen box door until it engages the latch and remove the Allen wrench or the metal rod.

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A 747-400 MAINTENANCE MANUAL
OXYGEN BOX (EXAMPLE)

Supernumerary Oxygen Box Installation (Example)
Figure 401

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M26922
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747-400
MAINTENANCE MANUAL

2.50 |0.25 INCHES DIA
(63.5 |6.35 mm)

MASK
Oxygen Mask Repacking Procedure

Figure 402 (Sheet 1)

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M26923
A
747-400
MAINTENANCE MANUAL

Oxygen Mask Repacking Procedure
Figure 402 (Sheet 2)

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M26924
A
747-400 MAINTENANCE MANUAL
COILED

Oxygen Mask Repacking Procedure
Figure 402 (Sheet 3)

M26925
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A

747-400
MAINTENANCE MANUAL

DOOR AREA
OXYGEN BOX

UP

ALL MASK HOSE COILS ARE TO BE STACKED AGAINST TRANSPARENT DUST COVER
IF INSTALLED
Supernumerary Oxygen Mask Arrangement
Figure 403 (Sheet 1)

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M26926
A
747-400
MAINTENANCE MANUAL

DOOR AREA

OXYGEN BOX

UP
B-B

Supernumerary Oxygen Mask Arrangement
Figure 403 (Sheet 2)

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M26927
A 747-400 MAINTENANCE MANUAL
DOOR AREA

C-C

Supernumerary Oxygen Mask Arrangement
Figure 403 (Sheet 3)

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