-Remove Halon Filter, Check Valve and Diaphragm -Inspect Halon Filter -Do a Detailed Inspection of Check Valve -Do a Detailed Inspection of Diaphragm -Reinstall Halon Filter, Check Valve and Diaphragm

TASK 26-23-00-200-002-A
-Remove Halon Filter, Check Valve and Diaphragm -Inspect Halon Filter -Do a Detailed Inspection of Check Valve -Do a Detailed Inspection of Diaphragm -Reinstall Halon Filter, Check Valve and Diaphragm

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 130
ZONE: 150
ZONE: 160
ZONE: 170

1. Reason for the Job
Refer to the MPD TASK: 262300-08
-REMOVE HALON FILTER, CHECK VALVE AND DIAPHRAGM -INSPECT HALON FILTER -DO A DETAILED INSPECTION OF CHECK VALVE -DO A DETAILED INSPECTION OF DIAPHRAGM -REINSTALL HALON FILTER, CHECK VALVE AND DIAPHRAGM
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT)
No specific	1	GAGE DIA 1.4 MM (0.055 IN) - GO/NO GO
No specific	1	PUNCH - PIN
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	VICE - SOFT JAWED
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 170 and 160 lbf.in (1.92 and 1.81 m.daN )
AETL34989	1	PIN SPANNER

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.02BBB9)	Mineral Hydraulic Fluid-Damper - -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.08BBD1)	Non Aqueous Cleaner-- Isopropyl Alcohol -
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
130	FWD CARGO COMPT AFT BULKHEAD OF AVNCS COMPT TO FWD PRESSURE BULKHEAD OF WING CENTER BOX
150	AFT CARGO COMPARTMENT FWD PRESS BULKHEAD TO AFT BULKHEAD OF AFT CARGO COMPARTMENT
160	BULK CARGO COMPARTMENT AFT BULKHEAD OF AFT CARGO COMPARTMENT TO AFT BULKHEAD OF BULK CARGO COMPARTMENT
170	AFT CAB U/FLOOR COMPT AFT BHD OF BULK
131CC, 231VF, 825
161DW, 826
132MW

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
3	O-RINGS	AIPC 26-23-14-01-050
5	O-RING	AIPC 26-23-14-01-050
3	O-RING	AIPC 26-23-14-20-050
5	O-RING	AIPC 26-23-14-20-050
1	PIN	AIPC 26-23-21-01-010
2	O-RING	AIPC 26-23-21-01-030
1	PIN	AIPC 26-23-21-20-010
2	O-RING	AIPC 26-23-21-20-020

E. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 25-54-12-000-002-A	Removal of the Ceiling Panels in the Forward Cargo Compartment
TASK 25-54-12-000-003-A	Removal of the Sidewall Panels in the Forward Cargo Compartment
TASK 25-54-12-400-002-A	Installation of the Ceiling Panels in the Forward Cargo Compartment
TASK 25-54-12-400-003-A	Installation of the Sidewall Panels in the Forward Cargo Compartment
TASK 25-55-12-000-001-A	Removal of the Aft Cargo-Compartment Partition at FR65
TASK 25-55-12-400-001-A	Installation of the Aft Cargo-Compartment Partition at FR65
TASK 26-23-14-000-001-A	Removal of the Halon Filter
TASK 26-23-14-000-002-A	Removal of the Halon Filter
TASK 26-23-14-400-001-A	Installation of the Halon Filter
TASK 26-23-14-400-002-A	Installation of the Halon Filter
TASK 26-23-14-920-001-A	Discard Water Adsorbing Filter
TASK 26-23-14-960-001-A	Discard Solid Particle Filter
TASK 26-23-21-000-001-A	Removal of the Check Valve
TASK 26-23-21-000-002-A	Removal of the Check Valve
TASK 26-23-21-400-001-A	Installation of the Check Valve
TASK 26-23-21-400-002-A	Installation of the Check Valve
TASK 26-23-25-000-001-A	Removal of the Diaphragm
TASK 26-23-25-000-002-A	Removal of the Diaphragm in the Aft Cargo Compartment
TASK 26-23-25-400-001-A	Installation of the Diaphragm
TASK 26-23-25-400-002-A	Installation of the Diaphragm in the Aft Cargo Compartment
TASK 52-30-00-860-001-A	Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A	Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 53-22-12-000-001-A	Removal of the Cabin Floor Panels
TASK 53-22-12-400-001-A	Installation of the Cabin Floor Panels
Check Valve ** ON A/C NOT FOR ALL
Diaphragm ** ON A/C NOT FOR ALL
Halon Filter ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 26-23-00-861-057-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 26-23-00-865-061-A ** ON A/C NOT FOR ALL

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR COND/CARGO FIRE/EXTIG/BTL1	1WX	C03
** ON A/C NOT FOR ALL
49VU	AIR COND/SDCU/CHAN1	11WQ	C06
49VU	AIR COND/CARGO FIRE/EXTIG/BTL2	8WX	C05
49VU	AIR COND/CARGO/FIRE/EXTIG/BTL1	1WX	C04
** ON A/C NOT FOR ALL
49VU	AIR COND/CARGO FIRE/EXTIG/BTL2	8WX	C04
** ON A/C NOT FOR ALL
49VU	AIR COND/CARGO/FIRE/EXTIG/BTL1	1WX	C03
** ON A/C NOT FOR ALL
122VU	AIR COND/SDCU/CHAN2	12WQ	T18
** ON A/C NOT FOR ALL
122VU	AIR COND/CARGO/FIRE/EXTIG	1WX	T19

Subtask 26-23-00-010-056-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Open the forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-001).
(2) Set the CARGO COMPT LIGHT switch 6LU to the ON position.
(3) Remove the sidewall panel 132MW (Ref. AMM TASK 25-54-12-000-003).

Subtask 26-23-00-010-056-E ** ON A/C NOT FOR ALL

C. Get Access
(1) Open aft cargo-compartment door 826 (Ref. AMM TASK 52-30-00-860-001).
(2) Set CARGO COMPT LIGHT switch 8LU to the ON position.
(3) Remove protection panel 161DW (Ref. AMM TASK 25-55-12-000-001).

Subtask 26-23-00-010-056-G ** ON A/C NOT FOR ALL

C. Get Access
(1) If an Additional Center Tank (ACT) is installed:
(a) Remove cabin floor panel 231VF (Ref. AMM TASK 53-22-12-000-001).
(b) Remove ceiling panel 131CC from the cargo compartment (Ref. AMM TASK 25-54-12-000-002).
(c) Put a WARNING NOTICE(S) in position to tell persons that the floor panel is open.
(d) Put a WARNING NOTICE(S) in position to tell persons that nitrogen will flow from the spray nozzles.
(e) Remove sidewall panel 132MW (Ref. AMM TASK 25-54-12-000-003).
(2) If the ACT is not installed:
(a) Put an ACCESS PLATFORM 2M (6 FT) in position at zone 825.
(b) Open forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-001).
(c) Set CARGO COMPT LIGHT switch 6LU to ON.
(d) Put a WARNING NOTICE(S) in position to tell persons that nitrogen will flow from the spray nozzles.
(e) Remove sidewall panel 132MW (Ref. AMM TASK 25-54-12-000-003).

Subtask 26-23-00-020-050-A ** ON A/C NOT FOR ALL

D. Removal of the Components for Inspection
(1) Remove the check valves (Ref. AMM TASK 26-23-21-000-001).
(2) Remove the diaphragms (Ref. AMM TASK 26-23-25-000-001).
(3) Remove the halon filters (Ref. AMM TASK 26-23-14-000-001).

Subtask 26-23-00-020-050-B ** ON A/C NOT FOR ALL

D. Removal of the Components for Inspection
(1) Remove the check valves (Ref. AMM TASK 26-23-21-000-002).
(2) Remove the diaphragms (Ref. AMM TASK 26-23-25-000-002).
(3) Remove the halon filters (Ref. AMM TASK 26-23-14-000-002).

4. Procedure
Subtask 26-23-00-210-054-A ** ON A/C NOT FOR ALL

A. Detailed Visual Inspection of the Check Valves

Check Valve ** ON A/C NOT FOR ALL

WARNING: DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:

FLUSH IT AWAY WITH CLEAN WATER
GET MEDICAL AID.

(1) Remove the pin (1) with the PUNCH - PIN.
(2) Discard the pin (1).
(3) Hold the inlet port of the check valve in a soft-jawed vice. Remove the housing (6) from the valve body (4).
(4) Remove and discard the o-ring (2).
(5) Clean the housing (6), the valve body (4), the spring (3) and the valve (5) with a soft-bristle brush and Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(6) Dry the components with clean with compressed air.
(7) Make sure that the mating surfaces of the valve (5) and the valve body (4) are in the correct condition.
(8) Move the valve (5) through its full range of travel. Make sure that the valve moves freely.
(9) Hold the valve body (4) in the vertical position with the inlet port highest. Make sure that the spring (3) holds the valve in the closed position.
(10) Install the new AIPC 26-23-21-01-030 O-RING (2) on the valve body (4).
(11) Hold the inlet port of the check valve in a soft-jawed vice. Install the housing (6) on the valve body (4).
(12) TORQUE the housing (6) to between 170 and 160 lbf.in (1.92 and 1.81 m.daN )

until the holes in the housing (6) and the valve body (4) are aligned.
(13) Install the new AIPC 26-23-21-01-010 PIN (1) in the housing (6).
(14) Make sure that the threads of the inlet port are in the correct condition.

Subtask 26-23-00-210-054-B ** ON A/C NOT FOR ALL

A. Detailed Visual Inspection of the Check Valves

Check Valve ** ON A/C NOT FOR ALL

WARNING: DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:

FLUSH IT AWAY WITH CLEAN WATER
GET MEDICAL AID.

(1) Remove the pin (1) with the PUNCH - PIN.
(2) Discard the pin (1).
(3) Hold the inlet port of the check valve in the VICE - SOFT JAWED.
(4) Remove the housing (6) from the valve body (4).
(5) Remove and discard the o-ring (2).
(6) Clean the housing (6), valve body (4), spring (3) and valve (5) with a soft-bristle brush and Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(7) Dry the components with a Textile-Lint free Cotton - (Material No.14SBA1) or clean with compressed air.
(8) Make sure that the mating surfaces of the valve (5) and the valve body (4) are in the correct condition.
(9) Move the valve (5) to its full range of travel.
(10) Make sure that the valve moves freely.
(11) Make sure that the inlet port is at the top when you hold the valve body (4) in the vertical position.
(12) Make sure that the spring (3) holds the valve in the closed position.
(13) Install the new AIPC 26-23-21-20-020 O-RING (2) or AIPC 26-23-21-01-030 O-RING (2) on the valve body (4).
(14) Hold the inlet port of the check valve in the VICE - SOFT JAWED.
(15) Loosely install the housing (6) on the valve body (4).
(16) TORQUE the housing (6) to between 170 and 160 lbf.in (1.92 and 1.81 m.daN )

until the holes in the housing (6) and the valve body (4) are aligned.
(17) Install the new AIPC 26-23-21-20-010 PIN (1) or AIPC 26-23-21-01-010 PIN (1) in the housing (6).
(18) Make sure that the threads of the inlet port are in the correct condition.

Subtask 26-23-00-210-054-D ** ON A/C NOT FOR ALL

A. Detailed Visual Inspection of the Check Valves

Check Valve ** ON A/C NOT FOR ALL

(1) Remove the tension pin (1) with the PUNCH - PIN
(2) Discard the tension pin (1).
(3) Hold the housing (6) of the check valve body (4) in a VICE - SOFT JAWED.
(4) Remove the check valve body (4) from the housing (6) with the AETL34989 PIN SPANNER (7).
(5) Remove and discard the O-ring (2) from the check valve body (4).
(6) Clean the check valve :

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

(a) Clean the housing (6), the check valve body (4), the spring (3) and the valve (5) with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) .
(7) Dry the components with Textile-Lint free Cotton - (Material No.14SBA1) or clean with compressed air.
(8) Make sure that the mating surfaces of the valve (5) and the check valve body (4) are in the correct condition.
(9) Move the valve (5) through its full range of travel. Make sure that the valve (5) moves freely.
(10) Hold the check valve body (4) in the vertical position with the inlet port highest. Make sure that the spring (3) holds the valve (5) in the closed position.
(11) Install the new AIPC 26-23-21-01-030 O-RING (2) on the check valve body (4).
(12) Loosely install the housing (6) on the check valve body (4).
(13) With the AETL34989 PIN SPANNER (7) TORQUE the housing (6) to between 170 and 160 lbf.in (1.92 and 1.81 m.daN )

until the holes of the housing (6) and the check valve body (4) align.
(14) Install the new AIPC 26-23-21-01-010 PIN (1) in holes of the housing (6) and the check valve body (4).
(15) Make sure that the threads of the inlet port are in the correct condition.

Subtask 26-23-00-210-056-A ** ON A/C NOT FOR ALL

B. Detailed Visual Inspection of the Diaphragm

Diaphragm ** ON A/C NOT FOR ALL

(1) Make sure that the hole in the diaphragm (1) is clean and has no blockage.
(2) Make sure that there is no corrosion on the diaphragm (1).
(3) Use a GAGE DIA 1.4 MM (0.055 IN) - GO/NO GO to make sure that the hole in the diaphragm (1) has the correct diameter.

NOTE: The diaphragm is serviceable, if the diameter of the hole is between 1.35 mm (0.0531 in.) and 1.45 mm (0.0571 in.).

(4) Make sure that the threads of the diaphragm (1) are clean and in the correct condition.

Subtask 26-23-00-210-058-C ** ON A/C NOT FOR ALL

C. Detailed Visual Inspection of the Halon Filters

Halon Filter ** ON A/C NOT FOR ALL

CAUTION: MAKE SURE THAT THE WATER-ABSORBING FILTER ELEMENT IS NOT OUT OF A SEALED CONTAINER FOR MORE THAN 30 SECONDS. THE ELEMENT WILL ABSORB WATER FROM THE AIR AND BECOME UNSERVICEABLE.

(1) Removal of the lockwire:

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(a) Remove and discard the lockwire from the filter bowls (1) and (7).
(2) Remove the solid-particle filter bowl (7) from the filter head (4).
(3) Remove and discard the O-ring (5) and do an inspection of the solid-particle filter element (6).
(4) Remove the water-absorbing filter bowl (1) from the filter head (4).
(5) Remove and discard the O-ring (3) and do an inspection of the water-adsorbing filter element (2).
(6) Make sure that the filter bowls (1) and (7) are clean and in the correct condition.
(7) Make sure that the inlet and outlet ports in the filter head (4) are clean and have no blockage.
(8) Apply hydraulic fluid:

CAUTION: APPLY A SMALL QUANTITY OF THE CORRECT HYDRAULIC FLUID ON THE O-RING. THIS WILL PREVENT DAMAGE TO IT. MAKE SURE THAT HYDRAULIC FLUID DOES NOT GO INTO THE FILTER. HYDRAULIC FLUID IN THE FILTER CAN CAUSE A MALFUNCTION OF THE SYSTEM.

(a) Apply a small quantity of Mineral Hydraulic Fluid-Damper - - (Material No.02BBB9) to the new AIPC 26-23-14-01-050 O-RINGS (3).
(9) Install the new O-ring (3) on the filter head (4).
(10) Installation of the water-adsorbing filter:
(a) If the water-adsorbing filter element (2) is in a serviceable condition:

Install the water-adsorbing filter element (2) and the filter bowl (1) on the filter head (4).

(b) If the water-adsorbing filter element (2) is not in a serviceable condition:

Replace the water-adsorbing filter (Ref. AMM TASK 26-23-14-920-001).

(11) Apply hydraulic fluid:

(a) Apply a small quantity of Mineral Hydraulic Fluid-Damper - - (Material No.02BBB9) to the new AIPC 26-23-14-01-050 O-RING (5).
(12) Install the new O-ring (5) on the filter head (4).
(13) Installation of the solid-particle filter:
(a) If the solid-particle filter element (6) is in a serviceable condition:

Install the solid-particle filter element (6) and the filter bowl (7) on the filter head (4).

(b) If the solid-particle filter element (6) is not in a serviceable condition:

Replace the solid-particle filter (Ref. AMM TASK 26-23-14-960-001).

(14) Install the lockwire:

(a) Safety the filter bowls (1) and (7) with a lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy - 0.8 mm (0.0315 in.).

Subtask 26-23-00-210-058-D ** ON A/C NOT FOR ALL

C. Detailed Visual Inspection of the Halon Filters

Halon Filter ** ON A/C NOT FOR ALL

CAUTION: MAKE SURE THAT THE WATER-ABSORBING FILTER ELEMENT IS NOT OUT OF A SEALED CONTAINER FOR MORE THAN 30 SECONDS. THE ELEMENT WILL ABSORB WATER FROM THE AIR AND BECOME UNSERVICEABLE.

(1) Removal of the lockwire:

(a) Remove and discard the lockwire from the filter bowls (1) and (7).
(2) Remove the solid-particle filter bowl (7) from the filter head (4).
(3) Remove and discard the O-ring (5) and do an inspection of the solid-particle filter element (6).
(4) Remove the water-adsorbing filter bowl (1) from the filter head (4).
(5) Remove and discard the O-ring (3) and do an inspection of the water-adsorbing filter element (2).
(6) Make sure that the filter bowls (1) and (7) are clean and in the correct condition.
(7) Make sure that the inlet and outlet ports in the filter head (4) are clean and have no blockage.
(8) Apply hydraulic fluid:

(a) Apply a small quantity of Mineral Hydraulic Fluid-Damper - - (Material No.02BBB9) to the new AIPC 26-23-14-20-050 O-RING (3).
(9) Install the new O-ring (3) on the filter head (4).
(10) Installation of the water-adsorbing filter:
(a) If the water-adsorbing filter element (2) is in a serviceable condition:

Install the water-adsorbing filter element (2) and the filter bowl (1) on the filter head (4).

(b) If the water-adsorbing filter element (2) is not in a serviceable condition:

Replace the water-adsorbing filter (Ref. AMM TASK 26-23-14-920-001).

(11) Apply hydraulic fluid:

(a) Apply a small quantity of Mineral Hydraulic Fluid-Damper - - (Material No.02BBB9) to the new AIPC 26-23-14-20-050 O-RING (5).
(12) Install the new O-ring (5) on the filter head (4).
(13) Installation of the solid-particle filter:
(a) If the solid-particle filter element (6) is in a serviceable condition:

Install the solid-particle filter element (6) and the filter bowl (7) on the filter head (4).

(b) If the solid-particle filter element (6) is not in a serviceable condition:

Replace the solid-particle filter (Ref. AMM TASK 26-23-14-960-001).

(14) Install the lockwire:

(a) Safety the filter bowls (1) and (7) with a lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy - 0.8 mm (0.0315 in.).

Subtask 26-23-00-420-050-A ** ON A/C NOT FOR ALL

D. Installation of the Components after Inspection
(1) Install a serviceable halon filter (Ref. AMM TASK 26-23-14-400-001).
(2) Install a serviceable diaphragm (Ref. AMM TASK 26-23-25-400-001).
(3) Install a serviceable check valve (Ref. AMM TASK 26-23-21-400-001).

Subtask 26-23-00-420-050-B ** ON A/C NOT FOR ALL

D. Installation of the Components after Inspection
(1) Install a serviceable halon filter (Ref. AMM TASK 26-23-14-400-002).
(2) Install a serviceable diaphragm (Ref. AMM TASK 26-23-25-400-002).
(3) Install a serviceable check valve (Ref. AMM TASK 26-23-21-400-002).

Subtask 26-23-00-865-062-A ** ON A/C NOT FOR ALL

E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR COND/CARGO FIRE/EXTIG/BTL1	1WX	C03
** ON A/C NOT FOR ALL
49VU	AIR COND/SDCU/CHAN1	11WQ	C06
49VU	AIR COND/CARGO FIRE/EXTIG/BTL2	8WX	C05
49VU	AIR COND/CARGO/FIRE/EXTIG/BTL1	1WX	C04
** ON A/C NOT FOR ALL
49VU	AIR COND/CARGO FIRE/EXTIG/BTL2	8WX	C04
** ON A/C NOT FOR ALL
49VU	AIR COND/CARGO/FIRE/EXTIG/BTL1	1WX	C03
** ON A/C NOT FOR ALL
122VU	AIR COND/SDCU/CHAN2	12WQ	T18
** ON A/C NOT FOR ALL
122VU	AIR COND/CARGO/FIRE/EXTIG	1WX	T19

5. Close-up
Subtask 26-23-00-410-060-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the sidewall panel 132MW (Ref. AMM TASK 25-54-12-400-003).
(3) Set the CARGO COMPT LIGHT switch 6LU to the OFF position.
(4) Close the forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-002).

Subtask 26-23-00-410-060-E ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install protection panel 161DW (Ref. AMM TASK 25-55-12-400-001).
(3) Set CARGO COMPT LIGHT switch 8LU to the OFF position.
(4) Close aft cargo-compartment door 826 (Ref. AMM TASK 52-30-00-860-002).

Subtask 26-23-00-410-060-G ** ON A/C NOT FOR ALL

A. Close Access
(1) If an Additional Center Tank (ACT) is installed:
(a) Make sure that the work area is clean and clear of tools and other items.
(b) Remove the WARNING NOTICE(S).
(c) Install sidewall panel 132MW (Ref. AMM TASK 25-54-12-400-003).
(d) Install ceiling panel 131CC on the cargo compartment (Ref. AMM TASK 25-54-12-400-002).
(e) Install cabin floor panel 231VF (Ref. AMM TASK 53-22-12-400-001).
(2) If the ACT is not installed:
(a) Make sure that the work area is clean and clear of tools and other items.
(b) Remove the WARNING NOTICE(S).
(c) Install sidewall panel 132MW (Ref. AMM TASK 25-54-12-400-003).
(d) Set CARGO COMPT LIGHT switch 6LU to OFF.
(e) Close forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-002).
(f) Remove the access platform(s).

Subtask 26-23-00-862-056-A ** ON A/C NOT FOR ALL

B. Put the aircraft back to its initial configuration.
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.03.31 23:46:01 UTC