25-60-00
 ALL  ú ú 10 Page 4 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
SMOKE SHUTTER
SEE A
OVERHEAD ESCAPE HATCH (REF)
SMOKE SHUTTER TEE HANDLE
SEE B OVERHEAD CIRCUIT BREAKER PANEL, P7 (REF)
FLIGHT COMPARTMENT

SMOKE SHUTTER LEVER  ROD 
(REF) STRINGER S-O  TELEFLEX CABLE 
STRINGER S-1R (REF)  MUFFLER SMOKE SHUTTER  TEE HANDLE 
FWD  A  B 
Flight Compartment Smoke Shutter Figure 2 

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 25-60-00
 ALL  ú ú 01 Page 5 ú Feb 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 EMERGENCY EQUIPMENT-INSPECTION/CHECK
____________________________________
 1. General
_______
 A. This procedure contains this task:
 (1)  an inspection/check of the loose emergency equipment.
 NOTE: This emergency equipment can be removed from the airplane.
____ Some or all of the equipment is installed on your airplanes.
 TASK 25-60-00-216-005
 2. Loose Emergency Equipment - Inspection/Check
____________________________________________
 A. Access
 (1)  Location Zone
 200 Upper Half Fuselage

 B. Procedure
 S 216-001
 (1)  
Make sure that the emergency equipment is clearly identified and is in the correct location in the airplane.

 S 716-003

 (2)  
Make sure you can remove it easily, and that the fittings are not damaged.

 S 216-004

 (3)  
Some of the emergency equipment is:

 (a)  
flashlights

 (b)  
first aid kits

 (c)  
medical kits

 (d)  
sea survival kits

 (e)  
smoke goggles

 (f)  
crash axes

 (g)  
asbestos gloves

 (h)  
power megaphones

 (i)  
radio beacons.

 (j)  
Protective Breathing Equipment (PBE).

 (4)  
Replace the emergency equipment if it is necessary.

 S 426-002
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 25-60-00
 ALL  ú ú 04 Page 601 ú Oct 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 EMERGENCY ESCAPE STRAPS AND DESCENT DEVICES -
_____________________________________________ DESCRIPTION AND OPERATION
_________________________
 1.  General_______
 A. Equipment covered in this section includes emergency evacuation escape descent devices for emergency escape from the flight compartment.
 2.  Escape Descent Devices (Fig. 1)______________________
 A.  Crew escape descent devices are stowed adjacent to the flight compartment overhead escape hatch above first observer's console. These devices are provided for flight crew emergency descent when conditions do not permit use of the floor-mounted escape slides at upper deck passenger cabin entry doors. The descent devices are housed in a divisioned stowage holder adjacent to the escape hatch.
 B.  The descent devices consist of a case housing, a centrifugal brake mechanism, a telescopic handgrip, and the descent line. The descent line is comprised of approximately 46 feet of stainless steel tape connected to the brake mechanism and a 48-inch length of 1/8-inch steel cable connected to a restraint bracket secured to the ceiling structure.
 C.  The descent device is used by removing the device from the holder and departing through the overhead escape hatch while maintaining a firm grasp on the device handgrip. Centrifugally operated brake shoes limit speed of descent. Enough slack is provided in the cable to allow crew to exit without resistance.
　
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