DOC AIRBUS | AMM A320FRemoval of the Turbine Center Frame Accelerometer [CFML]
TASK 77-31-05-000-801-A
Removal of the Turbine Center Frame Accelerometer
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 77-31-05-941-050-A
Subtask 77-31-05-020-052-A
[Rev.10 from 2021]
2026.04.02 06:37:55 UTC
Removal of the Turbine Center Frame Accelerometer
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.
FIN: 4187KS
1. Reason for the JobSelf explanatory
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 | AR | CAP - PROTECTION |
| No specific | AR | COVER - PROTECTION |
| No specific | 2 | PLIERS - JAWED, SOFT |
| No specific | AR | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 36-11-49-000-827-A | Removal of the Environmental Control System (ECS) Ducts from the Engine Case Ports to the Pylon Connections |
| TASK 71-13-00-010-803-A | Opening of the Fan Cowl Doors |
| TASK 78-30-00-040-809-A | Deactivation of the Thrust Reverser System for Ground Maintenance |
| TASK 78-36-00-010-806-A | Opening of the Thrust Reverser Cowl Doors |
Turbine Center Frame Accelerometer (PRE SB 72-0036)Subtask 77-31-05-941-050-A
A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put WARNING NOTICE(S) in position to tell persons not to operate:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 77-31-05-010-050-A (1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put WARNING NOTICE(S) in position to tell persons not to operate:
- The ENG/MODE selector switch, and
- The ENG/MASTER 1(2) control switch.
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.
Subtask 77-31-05-040-050-A (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.
C. Deactivation of the Thrust Reverser System for Maintenance
Subtask 77-31-05-010-051-A WARNING:
YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
(1) Do the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-809). D. Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-806):
(1) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
(2) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR
4. Procedure(1) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
(2) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR
Subtask 77-31-05-020-052-A
A. Removal of the Environmental Control System (ECS) Upper Duct
(1) If necessary, remove the ECS upper duct (Ref. AMM TASK 36-11-49-000-827).
Subtask 77-31-05-020-050-A (1) If necessary, remove the ECS upper duct (Ref. AMM TASK 36-11-49-000-827).
B. Removal of the Turbine Center Frame Accelerometer (PRE SB 72-0036)
(1) Remove the turbine center frame accelerometer (2) cable loop clamps as follows:
(a) Remove the bolt (7) that attaches the turbine center frame accelerometer (2) cable and loop clamp (6) to the support bracket (5).
(b) Remove the bolt (9) that attaches the turbine center frame accelerometer (2) cable and loop clamp (10) to the support bracket (8).
(c) Remove the bolt (11) that attaches the turbine center frame accelerometer (2) cable and loop clamp (12) to the support bracket (13).
(d) Remove the bolt (15) that attaches the turbine center frame accelerometer (2) cable and loop clamp (14) to the support bracket (13).
(e) Remove the bolt (17) that attaches the turbine center frame accelerometer (2) cable and loop clamp (16) to the support bracket (18).
(f) Remove the bolt (19) that attaches the turbine center frame accelerometer (2) cable and loop clamp (21) to the support bracket (20).
(2) Disconnect the electrical connector (22) from the turbine center frame accelerometer (2). Use PLIERS - JAWED, SOFT, if necessary.
(3) Remove the two bolts (23) that attach the turbine center frame accelerometer (2) to the support bracket (24).
(4) Remove the three bolts (1) that attach the turbine center frame accelerometer (2), accelerometer mount (3) and support bracket (5) to the fourth stage air manifold (4).
(5) Remove the turbine center frame accelerometer (2) and the accelerometer mount (3) from the engine.
(6) Install COVER - PROTECTION and CAP - PROTECTION on all the open ports, open tubes, open hoses and connectors.
Subtask 77-31-05-020-053-A (1) Remove the turbine center frame accelerometer (2) cable loop clamps as follows:
(a) Remove the bolt (7) that attaches the turbine center frame accelerometer (2) cable and loop clamp (6) to the support bracket (5).
(b) Remove the bolt (9) that attaches the turbine center frame accelerometer (2) cable and loop clamp (10) to the support bracket (8).
(c) Remove the bolt (11) that attaches the turbine center frame accelerometer (2) cable and loop clamp (12) to the support bracket (13).
(d) Remove the bolt (15) that attaches the turbine center frame accelerometer (2) cable and loop clamp (14) to the support bracket (13).
(e) Remove the bolt (17) that attaches the turbine center frame accelerometer (2) cable and loop clamp (16) to the support bracket (18).
(f) Remove the bolt (19) that attaches the turbine center frame accelerometer (2) cable and loop clamp (21) to the support bracket (20).
(2) Disconnect the electrical connector (22) from the turbine center frame accelerometer (2). Use PLIERS - JAWED, SOFT, if necessary.
(3) Remove the two bolts (23) that attach the turbine center frame accelerometer (2) to the support bracket (24).
(4) Remove the three bolts (1) that attach the turbine center frame accelerometer (2), accelerometer mount (3) and support bracket (5) to the fourth stage air manifold (4).
(5) Remove the turbine center frame accelerometer (2) and the accelerometer mount (3) from the engine.
(6) Install COVER - PROTECTION and CAP - PROTECTION on all the open ports, open tubes, open hoses and connectors.
C. Removal of the Turbine Center Frame Accelerometer (POST SB 72-0036)
(1) Remove the turbine center frame accelerometer (2) cable loop clamps as follows:
(a) Remove the bolt (7) that attaches the turbine center frame accelerometer (2) cable and loop clamp (6) to the support bracket (5).
(b) Remove the bolt (9) that attaches the turbine center frame accelerometer (2) cable and loop clamp (10) to the support bracket (8).
(c) Remove the two bolts (11) that attaches the turbine center frame accelerometer (2) cable and the two loop clamps (12) to the support bracket (13).
(d) Remove the bolt (15) that attaches the turbine center frame accelerometer (2) cable and loop clamp (14) to the support bracket (16).
(e) Remove the two bolts (18) that attaches the turbine center frame accelerometer (2) cable and the two loop clamps (19) to the support bracket (17).
(2) Disconnect the electrical connector (20) from the turbine center frame accelerometer (2). Use PLIERS - JAWED, SOFT, if necessary.
(3) Remove the two bolts (21) that attach the turbine center frame accelerometer (2) to the support bracket (22).
(4) Remove the three bolts (1) that attach the turbine center frame accelerometer (2), accelerometer mount (3) and support bracket (5) to the fourth stage air manifold (4).
(5) Remove the turbine center frame accelerometer (2) and the accelerometer mount (3) from the engine.
(6) Install COVER - PROTECTION and CAP - PROTECTION on all the open ports, open tubes, open hoses and connectors.
(1) Remove the turbine center frame accelerometer (2) cable loop clamps as follows:
(a) Remove the bolt (7) that attaches the turbine center frame accelerometer (2) cable and loop clamp (6) to the support bracket (5).
(b) Remove the bolt (9) that attaches the turbine center frame accelerometer (2) cable and loop clamp (10) to the support bracket (8).
(c) Remove the two bolts (11) that attaches the turbine center frame accelerometer (2) cable and the two loop clamps (12) to the support bracket (13).
(d) Remove the bolt (15) that attaches the turbine center frame accelerometer (2) cable and loop clamp (14) to the support bracket (16).
(e) Remove the two bolts (18) that attaches the turbine center frame accelerometer (2) cable and the two loop clamps (19) to the support bracket (17).
(2) Disconnect the electrical connector (20) from the turbine center frame accelerometer (2). Use PLIERS - JAWED, SOFT, if necessary.
(3) Remove the two bolts (21) that attach the turbine center frame accelerometer (2) to the support bracket (22).
(4) Remove the three bolts (1) that attach the turbine center frame accelerometer (2), accelerometer mount (3) and support bracket (5) to the fourth stage air manifold (4).
(5) Remove the turbine center frame accelerometer (2) and the accelerometer mount (3) from the engine.
(6) Install COVER - PROTECTION and CAP - PROTECTION on all the open ports, open tubes, open hoses and connectors.