Installation of the Nacelle Temperature Sensor [IAE]

TASK 75-41-15-400-010-B
Installation of the Nacelle Temperature Sensor

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

FIN: 4008KS ** 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 6.6 and 5.4 lbf.in (0.07 and 0.06 m.daN )
No specific	Torque wrench: range to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-002)	cleaning fluid
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

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

D. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 70-23-15-912-010-A	Connection of Electrical Connectors
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 73-25-34-710-042-A	Operational Test of the EIU with the CFDS
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
Nacelle Temperature Sensor

3. Job Set-up
Subtask 75-41-15-860-050-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 75-41-15-010-055-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 75-41-15-040-052-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 75-41-15-110-051-A ** ON A/C NOT FOR ALL

A. Cleaning of the replacement parts
(1) Clean the replacement parts and their interfaces with a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with cleaning fluid (Material No.V01-002) .

Subtask 75-41-15-420-053-B ** ON A/C NOT FOR ALL

B. Installation of the Nacelle Temperature Sensor
SBE 79-0088 AND SBN 71-0273
(1) Carefully install the nacelle temperature sensor (1) into the bracket (5) in the position noted during removal.
(2) Attach the sensor (1) to the bracket (5) with the four bolts (3), the four washers (6) and the four nuts (2). Hand tighten the nuts at this step.
(3) Put the clips (10) and (15) on the sensor (1) in the position noted during removal.
(4) Install the clip (15) on the tube (19) with the bolt (16), the washer (13) and the nut (18). Hand tighten the nut at this step.
(5) Install the clip (10) on the tube (7) with the bolt (9), the washer (11) and the nut (12). Hand tighten the nut at this step.
(6) TORQUE the four nuts (2) to between 6.6 and 5.4 lbf.in (0.07 and 0.06 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(7) TORQUE the two nuts (12) and (18) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(8) Remove the CAP-BLANKING from each electrical connector and receptacle.
(9) Make sure that all the electrical connections are clean and in the correct condition.
(10) Install the electrical connector 4008kS-A (4) to the electrical receptacle of the sensor (1) (Ref. AMM TASK 70-23-15-912-010).

5. Close-up
Subtask 75-41-15-410-053-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 thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 75-41-15-440-050-A ** ON A/C NOT FOR ALL

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

Subtask 75-41-15-410-054-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).
(3) Remove the access platform(s).

Subtask 75-41-15-710-052-A ** ON A/C NOT FOR ALL

D. Do an operational test of the Engine Interface Unit (Ref. AMM TASK 73-25-34-710-042) and make sure that no fault related to the nacelle temperature sensor is shown.

[Rev.10 from 2021] 2026.04.01 03:12:50 UTC