Installation of the Data Storage Unit [PW11]

TASK 73-21-02-400-801-A
Installation of the Data Storage Unit

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AND THE ADJACENT COMPONENTS AFTER ENGINE SHUTDOWN. THE ENGINE, THE ENGINE OIL AND THE ADJACENT COMPONENTS CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

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

ZONE: 400
FIN: 4670KS ** ON A/C NOT FOR ALL

1. Reason for the Job
Use this procedure to install the DSU.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 1M(3 FT)
No specific	1	COVER - PROTECTION
No specific	1	PLIERS - JAWED, SOFT
No specific	Torque wrench: range to between 70 and 60 lbf.in (0.79 and 0.68 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.P06-054)	Antigalling Compound

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 22-97-00-710-001-A	Operational Test of the LAND CAT III Capability
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 31-32-00-860-012-A	Procedure to Get Access to the SYSTEM REPORT/TEST/ENG Page
TASK 71-00-00-860-832-A	Procedure to Prevent Engine Motoring and to Stop the Electrical Supply to the EEC
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
TASK 73-21-00-710-806-A	Test No.7 - EEC Operation Test (Self Test)
TASK 73-21-00-710-807-A	Test No.6 - EEC Operation Test (Idle Test)
TASK 73-25-34-400-802-A	Installation of the Engine Interface Unit (EIU)
TSM 73-11-00-810-819	HPSOV Mechanically Stuck
Data Storage Unit (DSU)

3. Job Set-up
Subtask 73-21-02-941-051-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Make sure that you did the procedure to prevent engine motoring and to stop the electrical supply to the Electronic Engine Control (EEC)
(Ref. AMM TASK 71-00-00-860-832).

Subtask 73-21-02-010-051-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR
(2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.

4. Procedure
Subtask 73-21-02-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the Data Storage Unit (DSU)

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

(1) Removal of protection covers:

CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.

(a) Make sure that you remove all the necessary COVER - PROTECTION to prevent damage to the engine.
(2) Do a check that the DSU data part number selected is compatible with the engine configuration. Refer to SB PW1000G-C-72-00-0001-00A-930A-D.
(3) Install the DSU (3) on the Electronic Engine Control (EEC) as follows:
(a) Connect the DSU (3) to the EEC receptacle (J99) as follows:
1 Examine, align and engage the connector.
2 Push lightly inward on the connector while tightening the coupling ring.
3 Use the PLIERS - JAWED, SOFT and tighten the connector against the receptacle.
4 Make sure that you can feel the ratchet feature.
5 While you tighten, push the connector in and from side to side.
6 Tighten the connector until the pliers slip on the connector ring.
(b) Apply Antigalling Compound (Material No.P06-054) to the threads of the bolt (2).

NOTE: For the new or refurbished bolts or the nuts with baked on lubricant, do not do the wet application.

(c) Attach the DSU lanyard to the EEC support bracket with the bolt (2).
(d) TORQUE the bolt (2) to between 70 and 60 lbf.in (0.79 and 0.68 m.daN )

.
(4) Make sure that the most current DSU plug is installed. Check the number marked on the plug to the DSU data part number marked on the engine data plate.
(5) Examine the assembly for foreign objects, damage and correct assembly.
(6) Fault message ENG 2 FUEL VALVE FAULT / FUEL VALVE NOT OPEN (code 0119) at power ON.

NOTE: The Maintenance Message ENGxD-0019-HPSOV FAIL and the ECAM message ENG x FUEL VALVE FAULT can set during the Overspeed Spool down Test during engine shutdown when it should not.
If the ECAM alert ENG X FUEL VALVE FAULT with accompanying ENGxD-0019-HPSOV FAIL Maintenance Message was set during shutdown perform one engine run to idle followed by an engine shutdown to clear this fault.
A second engine run to idle may be required to observe the fault clearing from the Ground Scanning Report. If the ECAM alert returns during the second shutdown, continue to troubleshoot this fault TSM 73-11-00-810-819.

5. Close-up
Subtask 73-21-02-410-050-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

Subtask 73-21-02-861-050-A ** ON A/C NOT FOR ALL

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

Subtask 73-21-02-860-050-A ** ON A/C NOT FOR ALL

C. Preparation before Test
(1) On maintenance panel 50VU, push then release the ENG/FADEC GND PWR/1(2) pushbutton switch (the ON legend comes on).
(2) On the MCDU, get the SYSTEM REPORT/TEST page (Ref. AMM TASK 31-32-00-860-012).

Subtask 73-21-02-710-050-A ** ON A/C NOT FOR ALL

D. Do the test below:

ACTION	RESULT
1.Push the line key adjacent to the FADEC 1(2) A(B) indication.	The ENGINE 1(2) MAIN MENU page comes into view.
2.Push the line key adjacent to the LRU IDENT indication.	The FADEC 1(2) A(B) LRU IDENT Menu page comes into view.
3.Read the data that come into view on the MCDU (EEC P/N, ENGINE S/N, ENG RATING and N1 CLASS) to make sure that they are the same as those written on the engine identification plates.
4.On the MCDU, push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.
5.Stop the MCDU.

Subtask 73-21-02-720-050-A ** ON A/C NOT FOR ALL

E. Tests
(1) Make sure that all the circuit breakers shown in the paragraph Procedure of the engine interface unit installation are closed. If they are not, close them in the recommended sequence
(Ref. AMM TASK 73-25-34-400-802).
(2) If the new data storage unit installation:
(a) Do the test N°6 - EEC - Idle Test (Ref. AMM TASK 73-21-00-710-807) and keep the engine at idle power for a total time of at least 10 minutes prior to shutdown the engine.
(3) If the same data storage unit reinstallation:
(a) Do the test N°7 - EEC Operation Test (Self Test) (Ref. AMM TASK 73-21-00-710-806).
(4) If the aircraft is operated in CAT III conditions, do the operational test of the LAND CAT III capability (Ref. AMM TASK 22-97-00-710-001).

[Rev.10 from 2021] 2026.04.01 03:02:46 UTC