Installation of the P3/T3 Sensor [IAE]

TASK 73-22-15-400-010-A
Installation of the P3/T3 Sensor

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

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

ZONE: 400
FIN: 4024KS ** 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	AR	ACCESS PLATFORM 1M(3 FT)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 12 and 8 lbf.in (0.14 and 0.09 m.daN )
No specific	Torque wrench: range to between 15 and 10 lbf.in (0.17 and 0.11 m.daN )
No specific	Torque wrench: range to between 85 and 65 lbf.in (0.96 and 0.73 m.daN )
No specific	Torque wrench: range to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V02-126)	lockwire
(Material No.V02-141)	corrosion resistant steel lockwire
(Material No.V10-077)	lubricant (engine oil)

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
6	GASKET	AIPC 73-22-15-80-030

E. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 70-40-11-911-014-A	Locking Devices General Information
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-440-012-A	Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-32-00-010-010-A	Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A	Closing of the Thrust Reverser Halves
P3/T3 Sensor

3. Job Set-up
Subtask 73-22-15-860-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.

Subtask 73-22-15-010-052-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the thrust reverser doors are open: (Ref. AMM TASK 78-32-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 73-22-15-040-051-A ** ON A/C NOT FOR ALL

C. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated: (Ref. AMM TASK 78-30-00-040-012)

4. Procedure
Subtask 73-22-15-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the P3/T3 sensor:
(1) Install the P3/T3 sensor (5) on the diffuser case assembly (7).
(a) Install a new AIPC 73-22-15-80-030 GASKET (6) on to the diffuser case boss (8).

NOTE: The gasket can be installed with the compression feature in either direction.

(b) Align the bolt holes in the gasket with the bolt holes in the boss.
(c) Lower the sensor so that the extension goes in to the hole in the center of the boss (8).
(d) Lower the sensor until it is on the boss.
(e) Align the bolt holes in the sensor with the bolt holes in the boss.
(f) Apply clean V10-077lubricant (engine oil) to the bolts.
(g) Install the three bolts (1) in to the bolt holes in the sensor and the boss.
(h) TORQUE the bolts to between 85 and 65 lbf.in (0.96 and 0.73 m.daN )

, (Ref. AMM TASK 70-23-11-911-013).
(i) Safety the bolts with corrosion resistant steel lockwire (Material No.V02-141) , (Ref. AMM TASK 70-40-11-911-014).
(2) Connect the pressure tube (2) to the P3/T3 sensor (5) .
(a) Attach the tube nut to the adapter on the side of the sensor (5).
(b) TORQUE the nut to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )

. (Ref. AMM TASK 70-23-11-911-013)
(c) Safety the tube nut with lockwire (Material No.V02-126) , (Ref. AMM TASK 70-40-11-911-014).
(3) Connect the harness leads to the P3/T3 sensor.
(a) Attach the two leads, 4024KS-A, to their correct terminals.
(b) Attach the two leads, 4024KS-B, to their correct terminals.
(c) Install the nuts (3) and the nuts (4) on to their related correct terminals.
(d) TORQUE the two larger alumel nuts (4) to between 15 and 10 lbf.in (0.17 and 0.11 m.daN )

, (Ref. AMM TASK 70-23-11-911-013).
(e) TORQUE the two smaller chromel nuts (3) to between 12 and 8 lbf.in (0.14 and 0.09 m.daN )

, (Ref. AMM TASK 70-23-11-911-013).

Subtask 73-22-15-790-050-A ** ON A/C NOT FOR ALL

B. No test required.

5. Close-up
Subtask 73-22-15-410-050-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) Close the right thrust reverser half (Ref. AMM TASK 78-32-00-410-010)
(a) FOR [1000EM1] (ENGINE-1)
452AR
(b) FOR [1000EM2] (ENGINE-2)
462AR
(3) Remove the access platform(s).

Subtask 73-22-15-440-050-A ** ON A/C NOT FOR ALL

B. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).

Subtask 73-22-15-410-051-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 03:00:50 UTC