Installation of a Replacement Secondary Hinged Fairing

TASK 32-12-13-400-001-A
Installation of a Replacement Secondary Hinged Fairing

WARNING: MAKE SURE THAT THE SAFETY DEVICES AND THE WARNING NOTICES ARE IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

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

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 3M (10 FT)
No specific	2	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	1	GROUND POWER CART-HYDRAULIC
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.34 and 0.28 m.daN (30.09 and 24.78 lbf.in )
No specific	Torque wrench: range to between 1.6 and 1.13 m.daN (141.59 and 100.00 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06ABA1)	Polysulfide Sealant-Fuel Tank Brushable -
(Material No.06AEA1)	Polysulfide Sealant-Low Adhesion Brushable -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(Material No.14SBA1)	Textile-Lint free Cotton -
(Material No.14TAC1)	Article-- Wax Crayon -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
197CB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
4	COTTER PIN	AIPC 52-81-11-01-010
8	COTTER PINS	AIPC 52-81-11-01-010

E. Referenced Information

REFERENCE	DESIGNATION
TASK 07-11-00-581-001-A	Lifting for Aircraft Maintenance Operations
TASK 07-11-00-586-002-A	Lowering of the Aircraft for Maintenance Operations
TASK 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
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 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 29-10-00-864-001-A	Depressurize the Green Hydraulic System
TASK 32-00-00-081-001-A	Removal of the Safety Devices from the Landing Gears
TASK 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
TASK 32-00-00-481-002-A	Installation of the Safety Devices on the Landing Gear Doors
TASK 32-00-00-860-002-A	Ground Configuration after Flight Configuration with Electrical Power
TASK 32-00-00-860-002-A-01	Ground Configuration after Flight Configuration without Electrical Power
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
TASK 32-12-14-000-001-A	Removal of the MLG Fixed Fairing Assembly
TASK 32-12-14-400-001-A	Installation of the MLG Fixed Fairing Assembly (That was Removed For Access Only)
TASK 32-22-00-010-001-A	Nose Gear Doors - Ground Doors Opening
TASK 32-22-00-410-001-A	Nose Gear Doors - Ground Doors Closing
TASK 32-31-00-720-002-A	Functional Test of the Normal Extension and Retraction of the Landing Gear
TASK 57-26-21-000-001-A	Removal of the Secondary-Hinged-Fairing Attachment
TASK 57-26-21-400-001-A	Installation of the Secondary-Hinged-Fairing Attachment
Secondary Hinged Fairing ** ON A/C NOT FOR ALL
Secondary Hinged Fairing ** ON A/C NOT FOR ALL
Secondary Hinged Fairing - Rigging ** ON A/C NOT FOR ALL
Secondary Hinged Fairing - Rigging ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 32-12-13-941-053-A

A. Safety Precautions
(1) Make sure that the SAFETY BARRIER(S) are in position.
(2) Make sure that the ground safety locks are installed on the landing gear (Ref. AMM TASK 32-00-00-481-001).
(3) On panel 400VU:

Make sure that the landing-gear control-lever 6GA is in the DOWN position
Make sure that the WARNING NOTICE(S) is in the cockpit to tell persons not to operate the landing gear.

(4) On panel 110VU, make sure that the GRAVITY GEAR EXTN handle is folded into the center console.
(5) Make sure that the WARNING NOTICE(S) is in position at the ground door opening panel, to tell persons not to operate the landing gear doors.
(6) Make sure that the ACCESS PLATFORM 3M (10 FT) is in position below the applicable MLG.

Subtask 32-12-13-865-051-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R33
121VU	LGCIU/BAT SPLY/SYS1	58GA	R32
** ON A/C ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R32
121VU	LGCIU/BAT SPLY/SYS1	58GA	R31

Subtask 32-12-13-869-053-A

C. Flight Configuration Precautions
(1) If you did not open the LGCIU circuit breakers, make sure that the electrical circuits are de-energized (Ref. AMM TASK 24-41-00-862-002).

Subtask 32-12-13-010-054-A

D. Get Access
(1) Make sure that the MLG fixed fairing assembly is removed (Ref. AMM TASK 32-12-14-000-001).

4. Procedure
Subtask 32-12-13-420-052-A

A. Preparation for Installation

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.

(1) Clean the component interface and/or the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Remove the nut (5) and the bolt (7) from the secondary hinged fairing (2).
(5) Remove the lockwire from the locknuts (11) and (12).
(6) Adjust the dimension X to 205 mm (8.0709 in.) (distance between centers). Loosen the locknuts (11) and (12) to let the actuating rod (3) turn a minimum of four turns.
(7) Apply Polysulfide Sealant-Low Adhesion Brushable - (Material No.06AEA1) to the interface of the hinge (1) and the secondary hinged fairing (2).
(8) Apply Polysulfide Sealant-Fuel Tank Brushable - (Material No.06ABA1) to the bolts (7) and (10), but not the threads or the end.

Subtask 32-12-13-420-050-A

B. Installation of the Secondary Hinged Fairing
(1) Hold the secondary hinged fairing (2) in the correct position and install the bolts (10) and the nuts (9).
(2) Install the bolt (7), the bonding tag (6) and the nut (5).
(3) Install, bond and seal the bonding tag (6) to the hinge (1) (Ref. AMM TASK 20-28-00-912-802).
(4) TORQUE the nuts (5) and (9) to between 0.34 and 0.28 m.daN (30.09 and 24.78 lbf.in )

.
(5) Safety the nut (5) with a new AIPC 52-81-11-01-010 COTTER PIN (4).
(6) Safety the nuts (9) with new AIPC 52-81-11-01-010 COTTER PINS (8).
(7) Remove the access platform(s).
(8) Make sure that the work area is clean and clear of tools and other items.

Subtask 32-12-13-582-050-A

C. Lift the Aircraft
(1) Lift the aircraft on jacks (Ref. AMM TASK 07-11-00-581-001).

Subtask 32-12-13-865-052-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R33
121VU	LGCIU/BAT SPLY/SYS1	58GA	R32
** ON A/C ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R32
121VU	LGCIU/BAT SPLY/SYS1	58GA	R31

Subtask 32-12-13-860-053-A

E. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) On panel 40VU, make sure that the PTU-AUTO pushbutton switch OFF light is on.
(3) Open the MLG doors (Ref. AMM TASK 32-12-00-010-001).
(4) Make sure that a 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuator.
(5) Open the NLG doors (Ref. AMM TASK 32-22-00-010-001).
(6) Make sure that a 98D32203502000 SAFETY PIN - NLG DOOR is installed in each NLG door (Ref. AMM TASK 32-00-00-481-002).
(7) Remove the ground lock sleeve from the applicable MLG.
(8) Open the access panel 197CB to get access to the Green hydraulic-system ground-connection.
(9) Connect a GROUND POWER CART-HYDRAULIC to the Green hydraulic-system ground-connection but do not pressurize the hydraulic system.
(10) Retract the MLG:

CAUTION: MAKE SURE THAT THE EDGES OF THE FAIRINGS DO NOT HIT THE WING OPENING WHILE YOU RETRACT THE LANDING GEAR.

(a) On panel 400VU, move the landing-gear control-lever 6GA to the UP position.
(b) Retract the applicable landing gear with the hand pump on the ground hydraulic cart (or use the electric pump on a very low flow rate) until it is in the uplock position (on panel 402VU, the related red UNLK legend(s) go(es) off).
(c) Depressurize the Green hydraulic system
(Ref. AMM TASK 29-00-00-864-001).

Subtask 32-12-13-865-053-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R33
121VU	LGCIU/BAT SPLY/SYS1	58GA	R32
** ON A/C ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R32
121VU	LGCIU/BAT SPLY/SYS1	58GA	R31

Subtask 32-12-13-820-051-A ** ON A/C NOT FOR ALL

G. Adjustment of the Secondary Hinged Fairing
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE below the applicable zone:

For the left wing, below zone 733
For the right wing, below zone 743.

(2) Get access to the actuating rod (3) through the fixed fairing aperture.
(3) Adjust the actuating rod (3) to lift the door and make sure that the dimensions Y and Z at positions T, U, V, and W are correct:

The average of dimension Y at positions T and U must be between -2.5 mm (-0.0984 in.) and 2.0 mm (0.0787 in.)
The average of dimension Z at positions V and W must be between -2.5 mm (-0.0984 in.) and 2.0 mm (0.0787 in.).

(4) Tighten the locknuts (11) and (12) with your hand.
(5) Make a temporary mark with a Article-- Wax Crayon - (Material No.14TAC1) on the skin (forward and aft) in line with the inboard edge of the secondary hinged fairing.

NOTE: This is for the adjustment of the fixed fairing.

(6) Remove the access platform(s).
(7) Remove the WARNING NOTICE(S).

Subtask 32-12-13-820-051-D ** ON A/C NOT FOR ALL

G. Adjustment of the Secondary Hinged Fairing
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE below the applicable zone:

For the left wing, below zone 733
For the right wing, below zone 743.

The average of dimension Y at positions T and U must be between -3.5 mm (-0.1378 in.) and 3.0 mm (0.1181 in.).
The average of dimension Z at positions V and W must be between -3.5 mm (-0.1378 in.) and 3.0 mm (0.1181 in.).

NOTE: This is for the adjustment of the fixed fairing.

(6) Remove the access platform(s).
(7) Remove the WARNING NOTICE(S).

Subtask 32-12-13-865-054-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R33
121VU	LGCIU/BAT SPLY/SYS1	58GA	R32
** ON A/C ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R32
121VU	LGCIU/BAT SPLY/SYS1	58GA	R31

Subtask 32-12-13-867-052-A

I. Extension of the MLG

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR ARE CLEAR.

CAUTION: MAKE SURE THAT THE FLOW RATE AND THE SUPPLY PRESSURE ON THE GROUND HYDRAULIC CART ARE SET TO A MINIMUM.

(1) On the panel 400VU, move the landing-gear control-lever 6GA to the DOWN position.
(2) Extend the applicable landing gear with the hand pump on the ground hydraulic cart (or use the electric pump on a very low flow rate) until locked in the DOWN position.
(3) Depressurize the Green hydraulic system
(Ref. AMM TASK 29-10-00-864-001).
(4) Remove the ground hydraulic cart.

Subtask 32-12-13-865-055-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R33
121VU	LGCIU/BAT SPLY/SYS1	58GA	R32
** ON A/C ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R32
121VU	LGCIU/BAT SPLY/SYS1	58GA	R31

Subtask 32-12-13-420-051-A

K. Complete the Installation Procedure
(1) Install the GROUND LOCK SLEEVE on the applicable MLG (Ref. AMM TASK 32-00-00-481-001).
(2) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE below the applicable zone:

For the left wing, below zone 733
For the right wing, below zone 743.

(3) Disconnect the actuating rod (3) from the secondary hinged fairing (2) (Ref. AMM TASK 57-26-21-000-001).
(4) Hold the actuating rod (3) in position at the secondary hinged fairing (2).
(5) TORQUE the locknuts (11) and (12) to between 1.6 and 1.13 m.daN (141.59 and 100.00 lbf.in )

.
(6) Connect the actuating rod (3) to the secondary hinged fairing (2) (Ref. AMM TASK 57-26-21-400-001).

(7) Safety the locknuts (11) and (12) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

Subtask 32-12-13-410-051-A

L. Close Access
(1) Install the fixed fairing (Ref. AMM TASK 32-12-14-400-001).

Subtask 32-12-13-220-050-I ** ON A/C NOT FOR ALL

M. Dimensional Check

Secondary Hinged Fairing - Rigging ** ON A/C NOT FOR ALL

(1) Do a check of the dimensions that follow and make sure that:
(a) Dimension M is between 1.3 mm (0.0512 in.) and 10.7 mm (0.4213 in.).
(b) Dimension X is between -3.5 mm (-0.1378 in.) and 3.5 mm (0.1378 in.).
(2) If the dimensions M and X are not in the tolerances, adjust the dimensions that follow and make sure that:
(a) Dimension K is between 2.5 mm (0.0984 in.) and 9.5 mm (0.3740 in.).
(b) At position H, dimension N is between 1.5 mm (0.0591 in.) and 4.5 mm (0.1772 in.).
(c) At position J, dimension N is between 0.5 mm (0.0197 in.) and 4.5 mm (0.1772 in.).
(d) Dimension S is between 2.5 mm (0.0984 in.) and 9.5 mm (0.3740 in.).
(e) Dimension R is between 14.0 mm (0.5512 in.) and 31.0 mm (1.2205 in.).
(f) Dimension P is between -2.5 mm (-0.0984 in.) and 1.5 mm (0.0591 in.).
(g) At the inboard end of the shroud box, dimension Q is between 2.5 mm (0.0984 in.) and 9.5 mm (0.3740 in.).
(h) At the outboard end of the shroud box, dimension Q is between 3.2 mm (0.1260 in.) and 10.2 mm (0.4016 in.).
(3) Do a check of dimensions M and X again and make sure that they are in the tolerances given in step (1).

Subtask 32-12-13-220-050-K ** ON A/C NOT FOR ALL

M. Dimensional Check

Secondary Hinged Fairing - Rigging ** ON A/C NOT FOR ALL

(1) Do a check of the dimensions that follow and make sure that:
(a) Dimension M is between 1.3 mm (0.0512 in.) and 10.7 mm (0.4213 in.).
(b) Dimension X is between -3.5 mm (-0.1378 in.) and 3.5 mm (0.1378 in.).
(2) If the dimensions M and X are not in the tolerances, adjust the dimensions that follow and make sure that:
(a) Dimension K is between 2.5 mm (0.0984 in.) and 9.5 mm (0.3740 in.).
(b) At position H, dimension N is between -4.5 mm (-0.1772 in.) and 0.0 mm (0 in.).
(c) At position J, dimension N is between -4.5 mm (-0.1772 in.) and 0.0 mm (0 in.).
(d) Dimension S is between 2.5 mm (0.0984 in.) and 9.5 mm (0.3740 in.).
(e) Dimension R is between 14.0 mm (0.5512 in.) and 31.0 mm (1.2205 in.).
(f) Dimension P is between -2.5 mm (-0.0984 in.) and 1.5 mm (0.0591 in.).
(g) At the inboard end of the shroud box, dimension Q is between 2.5 mm (0.0984 in.) and 9.5 mm (0.3740 in.).
(h) At the outboard end of the shroud box, dimension Q is between 3.2 mm (0.1260 in.) and 10.2 mm (0.4016 in.).
(3) Do a check of dimensions M and X again and make sure that they are in the tolerances given in step (1).

Subtask 32-12-13-942-053-A

N. Removal of Equipment
(1) Remove the GROUND LOCK SLEEVE from the applicable MLG (Ref. AMM TASK 32-00-00-081-001).
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).

Subtask 32-12-13-865-056-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R33
121VU	LGCIU/BAT SPLY/SYS1	58GA	R32
** ON A/C ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R32
121VU	LGCIU/BAT SPLY/SYS1	58GA	R31

Subtask 32-12-13-720-050-A

P. Test
(1) Do a functional test of the MLG (Ref. AMM TASK 32-31-00-720-002).

5. Close-up
Subtask 32-12-13-860-052-A

A. Aircraft Maintenance Configuration
(1) Install the GROUND LOCK SLEEVE on the applicable MLG (Ref. AMM TASK 32-00-00-481-001).
(2) Lower the aircraft off jacks (Ref. AMM TASK 07-11-00-586-002).
(3) Put the aircraft back to the ground configuration (Ref. AMM TASK 32-00-00-860-002).
(4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

Subtask 32-12-13-410-050-A

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the MLG doors (Ref. AMM TASK 32-12-00-410-001).
(3) Close the NLG doors (Ref. AMM TASK 32-22-00-410-001).
(4) Close the access panel 197CB.

Subtask 32-12-13-942-054-A

C. Removal of Equipment
(1) Remove the temporary wax pencil marks from the skin at the inboard edge of the secondary hinged fairing.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the SAFETY BARRIER(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 00:41:19 UTC