(2)  
When the cabin is in a combined passenger/cargo configuration the floor-mounted portable dry-chemical fire extinguisher, and its applicator, must be installed in the forward part of the cabin. Cargo loading in any combined configuration must permit an aisle for access between the crew and passenger compartments, and must permit the use of the portable dry-chemical fire extinguisher, with applicator, to effectively reach fires in all areas of the cargo compartment.

(3)  
The main cargo door threshold assembly is installed temporarily, when no other facilities are available, to aid the movement of cargo pallets through the main cargo door opening.

(4)  
The personnel safety net is installed across the main cargo door opening while the door is open to protect personnel working in the cabin. When the main cargo door is closed, in a cargo-carrying configuration, the safety net is stowed in a bag installed on the sidewall just aft of the cargo door.

(5)  
When the seats adjacent to the emergency exits are removed, or installed, the seat armrests attached to the emergency exits should be removed, or installed, with the seats to which they belong.

5C8
Feb 20/85 25-09-131 Page 201
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.

K91933 K88342
Cabin Accommodation Conversions  541 
25-09-131 Page 202  Figure 201 (Sheet 1) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  Feb 01/75 

541  Cabin Accommodation Conversions 
Feb 01/75  Figure 201 (Sheet 2) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  25-09-131 Page 203 

2.  Equipment and Materials
A.  Personnel Safety Net - F70258-1
B.  Threshold Assembly - F80091-1
3.  Convert Cabin from the Combined Passenger/Cargo Configurations to the All-Cargo Configuration
A.  Open main cargo door (Ref. Chapter 52, Main Cargo Door).
B.  Install personnel safety net across main cargo door opening while door is open. Net should be installed whenever door is not being used for loading or unloading (Fig. 202).
WARNING:  TAKE CARE WHEN WORKING IN VICINITY OF OPEN DOOR. INSTALL DOORWAY SAFETY BARRIER TO PREVENT FALLING THROUGH DOORWAY.
C.  Remove the cargo/passenger dividing partition (Ref. 25-24-152).
D.  Remove seat track covers and place in seat back pocket of adjacent seats (Ref. 25-27-100).
E.  Remove all passenger seats. Place a numbered card in a seat back pocket of each seat to identify row number for reinstallation.
F.  Remove floor covering (Ref. 25-27-100). Roll carpet segments at each pallet position together into one roll to aid in reinstallation.
G.  Install additional parts of cargo system to provide complete system (Ref. 25-56-0).
H.  If installed, remove emergency exit light located on air conditioning ceiling outlet opposite the overwing emergency exits (Ref. Chapter 33, Emergency Lights).
I.  Remove personnel safety net and close main cargo door.
J.  On the forward overhead panel, operate GASPER FAN switch to OFF. Open GASPER FAN circuit breaker on P6 panel.
K.  On all passenger service units, close all gasper air outlets and switch off all reading lights.
L.  Open access door in aft end of forward lowered ceiling and operate passenger oxygen system shutoff valve to the fully closed position (Ref. 35-21-0).
M.  If desired, remove the dry chemical fire extinguisher from the floor at the forward end of the cabin (Ref. 25-09-100).
N.  Remove aft stowage compartment and closure panel on right and left side (Ref. 25-24-311).
O.  Verify the forward overhead light fixture air outlet shutoff valve is at the closed position.
WARNING:  EMERGENCY PROVISIONS FOR PREVENTING SMOKE PENETRATION INTO THE CREW COMPARTMENT REQUIRE THAT THE FORWARD VALVE BE CLOSED IN THE ALL-CARGO AND PASSENGER/CARGO CONFIGURATIONS.
25-09-131 Oct 20/84 Page 204
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.

4. Convert Cabin from the All-Cargo Configuration to the Combined Passenger/Cargo Configuration
A.  Open main cargo door (Ref. Chapter 52, Main Cargo Door).
B.  Install personnel safety net across main cargo door opening while door is open. Net should be installed whenever door is not being used for loading or unloading (Fig. 202).
WARNING:  TAKE CARE WHEN WORKING IN VICINITY OF OPEN DOOR. INSTALL DOORWAY SAFETY BARRIER TO PREVENT FALLING THROUGH DOORWAY.
C.  Remove that part of cargo system not required for the configuration to which the airplane is being converted (Ref. 25-56-0).
D.  Clean cabin floor as necessary.
　
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