Removal of the Feed Back Position Pick-Off Unit
TASK 27-81-19-000-001-A
Removal of the Feed Back 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 27-81-19-010-050-A Subtask 27-81-19-860-050-A
Subtask 27-81-19-020-050-A
[Rev.10 from 2021]
2026.03.31 23:56:25 UTC
Removal of the Feed Back 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: 28CV
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 |
| REFERENCE | DESIGNATION |
|---|---|
| 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 |
Subtask 27-81-19-010-050-A Subtask 27-81-19-860-050-A
B. Aircraft Maintenance Configuration
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the opening of the main door of the main gear.
(2) Make sure that the slats are in the fully retracted position (Ref. AMM TASK 27-80-00-866-005).
Subtask 27-81-19-865-050-A (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the opening of the main door of the main gear.
(2) Make sure that the slats are in the fully retracted position (Ref. AMM TASK 27-80-00-866-005).
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/CTL AND MONG/SYS1 | 5CV | B06 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B01 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/SLT/CTL/SYS2 | 7CV | R21 |
Subtask 27-81-19-020-050-A
A. Removal of the Feed Back 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 FPPU carefully from the gearbox.
(5) Put a TIE WRAP (3) behind the locking plate to prevent the retraction of the locking plate.
NOTE: Do not remove the Feed Back Position Pick-off Unit when the Pressure-off Brakes are removed from the Power Control Unit.
(1) Remove the electrical connectors 28CV-A and 28CV-B from the Feed Back Position Pick-off Unit (FPPU). (2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove the screws (1) and the washers (2).
(4) Remove the FPPU carefully from the gearbox.
(5) Put a TIE WRAP (3) behind the locking plate to prevent the retraction of the locking plate.
Feed Back Position Pick-Off Unit