(h)  
Ensure electrical connector is not damaged.

NOTE:  Squib pins can cause damage to the connector if pins do not enter electrical connector receptacle correctly.

(i)  
Connect electrical connector to the cargo fire bottle squib.

550 
May 01/99  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  26-25-02 Page 403 

F.  Perform an Installation Test of the Squib.
(1)  
Supply Electrical Power, Manual Control - Maintenance Practices (Apply Power) (AMM 24-22-0/201).

(2)  
Remove the DO-NOT-CLOSE tags and close this circuit breaker:

(a)  Circuit Breaker Panel P6 or P18:
1) CARGO FIRE EXT 1

(3)  
Push and hold the TEST switch on the cargo fire control panel (P8).

(a)  Ensure FWD and AFT EXT lights (Green) on the cargo fire control panel illuminate.

(4)  
Release TEST switch on the cargo fire control panel (P8).

(a)  FWD and AFT EXT lights (Green) will go out.
G.  Return the airplane to its normal condition.
(1)  
If it was removed, reinstall the air conditioning duct that goes in front of the fire bottle (AMM 21-21-11/401).

(2)  
Install lining at the aft end of the forward cargo compartment (AMM 25-52-131/401).

(3)  
Close 4404R, Forward Cargo Door.

(4)  
Remove electrical power if it is no longer needed (AMM 24-22-0/201).

550 
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NOZZLE-CARGO COMPARTMENT DISCHARGE-REMOVAL/INSTALLATION
EFFECTIVITY
737-200 Passenger Airplanes Incorporating SB 26A1081
1.  General
A.  This procedure has these tasks:
(1)  
Removal of the Fwd/Aft cargo compartment discharge nozzle(s).

(2)  
Installation of the Fwd/Aft cargo compartment discharge nozzle(s).

2.  Cargo Compartment Discharge Nozzle(s) Removal (Fig. 401)
A.  References
(1)  Cargo Compartment Lining Removal/Installation (AMM 25-52-131/401).
B.  Access
(1) 
 Location Zones

(a)  
213 Forward Cargo Compartment

(b)  
215 Aft Cargo Compartment

(2) 
 Access Panels

(a)  
4404R, Forward Cargo Door

(b)  
4504R, Aft Cargo Door

C.  Prepare for Removal
(1)  
Open this circuit breaker and attach a DO-NOT-CLOSE tag:

(a)  Circuit Breaker Panel P6 or P18:
1) CARGO FIRE EXT 1

(2)  
Open 4404R, Forward Cargo Door or 4504R, Aft Cargo Door.

D.  Remove cargo compartment discharge nozzle.
(1)  
Remove forward or aft cargo compartment ceiling lining as required (AMM 25-52-111/401).

(2)  
Remove screws holding discharge nozzle to pan cover assembly and retain the spacer.

(3)  
Disconnect discharge nozzle from discharge tube.

(4)  
Install protective cover over discharge tube end.

3.  Cargo Bay Smoke Detector Installation (Fig. 401)
A.  References
(1) Cargo Compartment Ceiling Lining Removal/Installation (AMM 25-52-111/401).
B.  Access
(1) 
 Location Zones

(a)  
213 Forward Cargo Compartment

(b)  
215 Aft Cargo Compartment

(2) 
 Access Panels

(a)  
4404R, Forward Cargo Door

(b)  
4504R, Aft Cargo Door

C.  Prepare for Installation
(1)  
Open this circuit breaker and attach a DO-NOT-CLOSE tag:

(a)  Circuit breaker Panel P6 or P18:
1) CARGO FIRE EXT 1

(2)  
Open the 4404R Forward Cargo Door or 4504R Aft Cargo Door.

May 01/99 26-25-03 Page 401
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.

K13410
Cargo Compartment Discharge Nozzle Removal/Installation  550 
26-25-03  Figure 401  May 01/99 
Page 402 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

D.  Install Cargo Compartment Discharge Nozzle
(1)  
Remove protective cover installed on discharge tube.

(2)  
Connect discharge nozzle to discharge tube, tighten to 45-55 pound-feet and install lockwire.

(3)  
Install discharge nozzle screws through spacer and attach to pan cover assembly.

(4)  
　
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