Installation of the Pressure Sensor

TASK 47-41-13-400-001-A
Installation of the Pressure Sensor

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

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

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

WARNING: YOU MUST PUT ON AND ATTACH A SAFETY HARNESS BEFORE YOU START WORK:

ON THE THS OR IN THE REAR FUSELAGE
ON TOP OF THE WINGS OR PYLONS.

WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.

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

FIN: 5YA ** ON A/C NOT FOR ALL

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 1.186 and 1.075 m.daN (104.96 and 95.13 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03GEE1)	Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated -
No specific	19506 Lockwire

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
191AB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
3	PACKING	AIPC 47-41-04-01-030
3	PACKING	AIPC 47-41-84-01-030

E. Referenced Information

REFERENCE	DESIGNATION
TASK 20-11-11-911-001-A	Safetying with Lockwire
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 47-31-34-740-001-A	BITE Test of the IGGS with Bleed Air
TASK 53-25-11-000-001-A	Removal of the Forward Belly Fairing Panels (191AT, 192AT, 191AB, 192AB)
TASK 53-25-11-400-001-A	Installation of Forward Belly Fairing Panels (191AT, 191AB, 192AT, 192AB)
Pressure Sensor

3. Job Set-up
Subtask 47-41-13-860-051-A ** ON A/C NOT FOR ALL

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

Subtask 47-41-13-865-051-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
121VU	IGGS/CTRL	7YA	N28
** ON A/C NOT FOR ALL
121VU	IGGS/CTRL	7YA	P28
** ON A/C NOT FOR ALL
122VU	CSAS / CTRL	1HW	U17

Subtask 47-41-13-010-051-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position at the zones 191 and 192.
(2) Make sure that forward belly-fairing panel 191AB is removed (Ref. AMM TASK 53-25-11-000-001).

4. Procedure
Subtask 47-41-13-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the Pressure Sensor

WARNING: DO NOT GO INTO THE WORK AREA UNTIL A MINIMUM OF 5 MINUTES AFTER YOU REMOVE THE ACCESS PANEL. LET AIR FLOW THROUGH THE WORK AREA. AIR FROM THIS SYSTEM HAS A LOW OXYGEN CONTENT AND CAN CAUSE INJURY OR DEATH.

CAUTION: BE CAREFUL WHEN YOU TOUCH THIS ASSEMBLY. IT HAS PRECISION- TOLERANCE COMPONENTS WITH VERY POLISHED SURFACES. IF YOU ARE NOT CAREFUL, IT IS VERY EASY TO CAUSE DAMAGE TO THESE COMPONENTS (INTERNAL CONTAMINATION, EXTERNAL IMPACT DAMAGE).

CAUTION: REMOVE OR INSTALL PACKING SEALS CAREFULLY. DAMAGE TO SEALS OR SEALING SURFACES CAN CAUSE LEAKAGE AND CORROSION.

(1) Clean the component interfaces and the adjacent area.
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.

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

(3) Install the shim(s) (4).

NOTE: Install the necessary quantity of shims to make sure the correct installation of the pressure sensor in the sensor inlet port.

(4) Apply a thin layer of Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated - (Material No.03GEE1) to the new AIPC 47-41-04-01-030 PACKING (3) or AIPC 47-41-84-01-030 PACKING (3).
(5) Install the new AIPC 47-41-04-01-030 PACKING (3) or AIPC 47-41-84-01-030 PACKING (3) on the pressure sensor (5).
(6) Remove the PLUG-BLANKING from each disconnected line end.
(7) Carefully install the pressure sensor (5) in the sensor inlet port (2) of the duct assembly (1).
(8) TORQUE the pressure sensor (5) to between 1.186 and 1.075 m.daN (104.96 and 95.13 lbf.in )

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.

(9) Safety the pressure sensor (5) with 19506 Lockwire double wirelock procedure (Ref. AMM TASK 20-11-11-911-001).
(10) Connection of the electrical connector (6).
(a) Remove the TIE WRAP that attaches the electrical connector (6) to the IGGS pallet.
(b) Remove the CAP-BLANKING from each electrical connector and receptacle.
(c) Make sure that the electrical connectors are clean and in the correct condition.
(d) Connect the electrical connector (6) to the pressure sensor (5).

Subtask 47-41-13-790-050-A ** ON A/C NOT FOR ALL

B. Leak Test

NOTE: Do the two subsequent steps at the same time. Two persons are necessary to do these steps.

(1) Do the BITE Test of the IGGS with Bleed Air (Ref. AMM TASK 47-31-34-740-001).
(2) Examine the joint between the pressure sensor (5) and the duct assembly (1) for signs of air leakage.

NOTE: Air leaks are not permitted.

5. Close-up
Subtask 47-41-13-410-050-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 forward belly-fairing panel 191AB (Ref. AMM TASK 53-25-11-400-001).

Subtask 47-41-13-865-052-A ** ON A/C NOT FOR ALL

B. 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
121VU	IGGS/CTRL	7YA	N28
** ON A/C NOT FOR ALL
121VU	IGGS/CTRL	7YA	P28
** ON A/C NOT FOR ALL
122VU	CSAS / CTRL	1HW	U17

Subtask 47-41-13-860-052-A ** ON A/C NOT FOR ALL

C. Put the aircraft back to its initial configuration.
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.02 06:26:20 UTC