DOC AIRBUS | AMM A320FRemoval of the Instrumentation Position Pick-Off Unit
TASK 27-85-11-000-001-A
Removal of the Instrumentation Position Pick-Off Unit
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 27-85-11-010-050-A Subtask 27-85-11-860-050-A
Subtask 27-85-11-020-050-A
[Rev.10 from 2021]
2026.04.01 06:56:42 UTC
Removal of the Instrumentation Position Pick-Off Unit
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.
FIN: 4CN
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 3M (10 FT)- ADJUSTABLE |
| No specific | AR | CAP - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | TIE WRAP |
| 98D27803000000 | 1 | LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-00-00-480-002-A | Installation of the Flap/Slat Control-Lever Locking Tool (98D27803000000) |
| TASK 27-80-00-866-005-A | Retracting the Slats on the Ground |
| TASK 32-12-00-010-001-A | Open the Main Gear Doors for Access |
Instrumentation Position Pick-Off UnitSubtask 27-85-11-010-050-A Subtask 27-85-11-860-050-A
B. Aircraft Maintenance Configuration
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the opening of the main doors of the main gear.
(2) Make sure that the slats are in the fully retracted position (Ref. AMM TASK 27-80-00-866-005).
(3) Install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the slat/flap control lever (Ref. AMM TASK 27-00-00-480-002).
Subtask 27-85-11-865-050-A (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the opening of the main doors of the main gear.
(2) Make sure that the slats are in the fully retracted position (Ref. AMM TASK 27-80-00-866-005).
(3) Install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the slat/flap control lever (Ref. AMM TASK 27-00-00-480-002).
C. Open, safety and tag this(these) circuit breaker(s):
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT FLP/POS/IND 1 | 1CN | B12 |
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B06 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT FLP/POS/IND 1 | 1CN | B07 |
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B01 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | FLIGHT CONTROLS/SLT FLP/2POS/IND | 2CN | P16 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/SLT/CTL/SYS2 | 7CV | R21 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | FLIGHT CONTROLS/SLT FLP/2POS/IND | 2CN | P21 |
Subtask 27-85-11-020-050-A
A. Removal of the Instrumentation Position Pick-Off Unit
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove the screws (1) and the washers (2).
(4) Remove the IPPU carefully from the gearbox.
(5) Put a TIE WRAP (3) behind the locking plate to prevent retraction of the locking plate.
NOTE: Do not remove the Instrumentation Position Pick-off Unit when the Pressure-off Brakes are removed from the Power Control Unit.
(1) Remove the electrical connectors 4CN-A and 4CN-B from the Instrumentation Position Pick-off Unit (IPPU). (2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove the screws (1) and the washers (2).
(4) Remove the IPPU carefully from the gearbox.
(5) Put a TIE WRAP (3) behind the locking plate to prevent retraction of the locking plate.