Fasteners Missing from the Lining Panels of the Bulk Cargo Compartment

TASK 25-55-12-300-001-A
Fasteners Missing from the Lining Panels of the Bulk Cargo Compartment

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

CAUTION: USE ONLY THE SPECIFIED MATERIALS AND OBEY THE INSTRUCTIONS FROM THE MATERIAL MANUFACTURERS. OTHER MATERIALS CAN CAUSE DAMAGE TO THE SURFACE PROTECTION OF THE COMPONENTS AND THE RELATED AREA.

ZONE: 160

1. Reason for the Job
Self explanatory
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	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	Torque wrench: range to between 0.060 and 0.055 m.daN (5.31 and 4.87 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05RAB9)	Adhesive Film Tape-- Aluminium Foil -
(Material No.05TAB1)	Adhesive Tape-- Glass Cloth -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
160	BULK CARGO COMPARTMENT AFT BULKHEAD OF AFT CARGO COMPARTMENT TO AFT BULKHEAD OF BULK CARGO COMPARTMENT

D. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 25-50-00-200-002-A	Visual Check of Cargo Compartment Decompression, Lining, Floor Panels and Pressure Compensation Valve (as far as Visible, if ACT(s) or Sliding Carpet System Installed)
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 52-30-00-860-006-A	Open the Bulk Cargo-Compartment Door
TASK 52-30-00-860-008-A	Close the Bulk Cargo-Compartment Door
TASK 25-50-00-00	CARGO COMPARTMENTS - DESCRIPTION AND OPERATION
TASK 25-50-00-00-01	CARGO COMPARTMENTS - DESCRIPTION AND OPERATION
TASK 25-50-00-00-02	CARGO COMPARTMENTS - DESCRIPTION AND OPERATION
Missing Fastener Inspection
Missing Fasteners in a Quadrant of a Ceiling/Partition Lining Panel
Missing Fasteners in an Interface Cutout of a Ceiling/Partition Lining Panel
Missing Fasteners in the Corners of a Ceiling/Partition/Sidewall Lining Panel
Missing fasteners in a Clamp Profile
Missing Fastener Repair
Missing Fasteners in a Sidewall Lining Panel ** ON A/C NOT FOR ALL
Missing Fasteners in a Triangle Lining Panel in the Cargo Entrance Area ** ON A/C NOT FOR ALL
Missing Fasteners in Adjacent Ceiling Lining Panels ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 25-55-12-010-056-A ** ON A/C NOT FOR ALL

A. Get Access
(1) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
(2) Open the bulk cargo-compartment door (Ref. AMM TASK 52-30-00-860-006).
(3) Put the ACCESS PLATFORM 2M (6 FT) in position at the opening of the bulk cargo-compartment door.
(4) Set the light switch to on.

Subtask 25-55-12-010-056-C ** ON A/C NOT FOR ALL

A. Get Access
(1) Open the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-001).
(2) Put the ACCESS PLATFORM 2M (6 FT) in position at the opening of the aft cargo-compartment door.

Subtask 25-55-12-865-073-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
2001VU	SEMI AUTO CLS-AFT	103MY	D08
2001VU	SEMI AUTO CLS-AFT	102MY	D06

4. Procedure
Subtask 25-55-12-210-052-A

A. Inspection
(1) Do an inspection of the lining panels of the Bulk cargo compartment for missing fasteners (Ref. AMM TASK 25-50-00-200-002).
(2) If necessary, replace the missing fasteners.
(3) Refer to (Ref. AMM D/O 25-50-00-00) for the applicable panel type (rapid decompression panels or collapsing lining panels).

Subtask 25-55-12-350-050-C ** ON A/C NOT FOR ALL

B. Repair of a Lining Panel with a Missing Fastener (Rapid Decompression Safety-System - Rapid Decompression Panel)

WARNING: USE GOGGLES AND PROTECTIVE CLOTHING WHEN YOU REMOVE, INSTALL OR TORQUE THE FASTENER. IF PARTS OF THE FASTENER RELEASE SUDDENLY, THERE IS A RISK OF INJURY.

CAUTION: WHEN THE RELEASE FUNCTION OF THE BRACKET (SPRING-LOADED CATCH) WAS OPERATED, REPLACE THE FASTENER ASSEMBLY WITH THE SILVER METALLIC WASHERS. DO NOT INSTALL FASTENER ASSEMBLIES WITH WHITE WASHERS TOGETHER WITH FASTENER ASSEMBLIES WITH SILVER METALLIC WASHERS ON THE SAME PANEL. THIS CAN CAUSE MALFUNCTION OF THE RELATED PANEL.

(1) If a stud is missing, loosely install a new fastener assembly (stud, washer and lockwasher):
(a) TORQUE the stud to between 0.060 and 0.055 m.daN (5.31 and 4.87 lbf.in )

NOTE: When you tighten the studs you will hear a click. This is a sign that you used the correct procedure to tighten the studs. This click is not a sign that the correct torque value is applied. The applicable torque value must be between 0.055 and 0.060 m.daN in order to get 0.040 to 0.060 m.daN (measured on installed lining panel), because of to the compressible connection.

(2) If it is not possible to replace the missing fastener, do the temporary repair as follows.
(3) Make sure that you obey all these conditions for permitted/not permitted missing fasteners:
(a) Missing fasteners are permitted if:

Not more than one fastener is missing from each panel quadrant in a ceiling/sidewall/partition lining panel.
Missing Fasteners in a Quadrant of a Ceiling/Partition Lining Panel ** ON A/C NOT FOR ALL
Not more than one fastener is missing from each interface cutout in a ceiling/sidewall/partition lining panel.
Missing Fasteners in an Interface Cutout of a Ceiling/Partition Lining Panel ** ON A/C NOT FOR ALL

(b) Missing fasteners are not permitted:

In a corner of a ceiling/sidewall/partition lining panel.
Missing Fasteners in the Corners of a Ceiling/Partition/Sidewall Lining Panel ** ON A/C NOT FOR ALL
In a clamp profile.
Missing fasteners in a Clamp Profile ** ON A/C NOT FOR ALL

(4) Do a visual inspection for permitted missing fasteners:

Inspection Interval	Action
0-100 flight hours (10 days) after the detection of the defect.	Do a visual inspection one time each week.
101-500 flight hours (50 days) after the detection of the defect.	Do a visual inspection one time each day.
Maximum 500 flight hours (50 days) after the detection of the defect.	Install a new fastener assembly (stud, washer and lockwasher).

(5) Repair the missing fastener as follows:

Missing Fastener Repair ** ON A/C NOT FOR ALL

(a) Seal the hole on the lining panel where the fastener is missing with the Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) or the Adhesive Tape-- Glass Cloth - (Material No.05TAB1) .
(b) Make sure that the tape length does not extend the adjacent structure, adjacent fasteners or the adjacent panel.

Subtask 25-55-12-350-050-D ** ON A/C NOT FOR ALL

B. Repair of a Lining Panel with a Missing Fastener (Rapid Decompression Safety-System - Collapsing Lining Panel)

WARNING: USE GOGGLES AND PROTECTIVE CLOTHING WHEN YOU REMOVE, INSTALL OR TORQUE THE FASTENER. IF PARTS OF THE FASTENER RELEASE SUDDENLY, THERE IS A RISK OF INJURY.

(1) If a stud is missing, loosely install a new fastener assembly (stud, washer and lockwasher):
(a) TORQUE the stud to between 0.060 and 0.055 m.daN (5.31 and 4.87 lbf.in )

Not more than one fastener is missing from each sidewall lining panel.
Missing Fasteners in a Sidewall Lining Panel ** ON A/C NOT FOR ALL
Not more than one fastener is missing from each panel quadrant in a ceiling/partition lining panel.
Missing Fasteners in a Quadrant of a Ceiling/Partition Lining Panel ** ON A/C NOT FOR ALL
Not more than one fastener is missing from each interface cutout in a ceiling/partition lining panel.
Missing Fasteners in an Interface Cutout of a Ceiling/Partition Lining Panel ** ON A/C NOT FOR ALL

(b) Missing fasteners are not permitted:

In a corner of a ceiling/partition/sidewall lining panel.
Missing Fasteners in the Corners of a Ceiling/Partition/Sidewall Lining Panel ** ON A/C NOT FOR ALL
In a clamp profile.
Missing fasteners in a Clamp Profile ** ON A/C NOT FOR ALL
In a triangle lining panel.
Missing Fasteners in a Triangle Lining Panel in the Cargo Entrance Area ** ON A/C NOT FOR ALL
In an adjacent ceiling lining panel.
Missing Fasteners in Adjacent Ceiling Lining Panels ** ON A/C NOT FOR ALL

(4) Do a visual inspection for permitted missing fasteners:

Inspection Interval	Action
0-100 flight hours (10 days) after the detection of the defect.	Do a visual inspection one time each week.
101-500 flight hours (50 days) after the detection of the defect.	Do a visual inspection one time each day.
Maximum 500 flight hours (50 days) after the detection of the defect.	Install a new fastener assembly (stud, washer and lockwasher).

(5) Repair the missing fastener as follows:

Missing Fastener Repair ** ON A/C NOT FOR ALL

CAUTION: MAKE SURE THAT THERE IS NO OVERLAP BETWEEN THE TAPE AND THE ADJACENT STRUCTURE, THE ADJACENT FASTENERS OR THE ADJACENT PANEL. AN OVERLAP CAN CAUSE MALFUNCTION OF THE COLLAPSING LINING PANELS.

(a) Seal the hole on the lining panel where the fastener is missing with the Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) or the Adhesive Tape-- Glass Cloth - (Material No.05TAB1) .

5. Close-up
Subtask 25-55-12-865-074-A

A. 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
2001VU	SEMI AUTO CLS-AFT	103MY	D08
2001VU	SEMI AUTO CLS-AFT	102MY	D06

Subtask 25-55-12-410-054-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Set the light switch to off.
(3) Close the bulk cargo-compartment door (Ref. AMM TASK 52-30-00-860-008).
(4) Remove the access platform(s).
(5) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

Subtask 25-55-12-410-054-C ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-002).
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:39:32 UTC