Installation of the Return to Seat sign
TASK 23-73-62-400-001-A
Installation of the Return to Seat sign
1. Reason for the Job
Self Explanatory
2. Job Set-up Information
A. Referenced Information
3. Job Set-up
Subtask 23-73-62-860-050-A ** ON A/C NOT FOR ALL
Subtask 23-73-62-420-050-A ** ON A/C NOT FOR ALL
Subtask 23-73-62-862-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.03.31 23:19:03 UTC
Installation of the Return to Seat sign
1. Reason for the Job
Self Explanatory
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TASK 23-73-00-740-005-A | BITE-Test of the Cabin Intercommunication Data System (CIDS) through the CFDS |
| TASK 23-73-00-861-001-A | Energize the Cabin Intercommunication Data System (CIDS) |
| 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 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| TASK 24-41-00-862-002-A-01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| TASK 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
Subtask 23-73-62-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the service cabinet door is open.
Subtask 23-73-62-865-051-A ** ON A/C NOT FOR ALL (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the service cabinet door is open.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/DEU A ESS/LINE 2 | 155RH | G05 |
| 49VU | COM/CIDS/DEU A ESS/LINE 1 | 154RH | G04 |
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU A NORM/R AFT | 168RH | M14 |
| 121VU | COM NAV/CIDS/DEU A NORM/L AFT | 167RH | M13 |
| 121VU | COM NAV/CIDS/DEU A NORM/L FWD | 163RH | M09 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU A NORM/L FWD | 163RH | M10 |
| 2001VU | CIDS/ DEU A NORM AFT RH | 174RH | C08 |
| 2001VU | CIDS/ DEU A NORM AFT LH | 173RH | C07 |
| 2001VU | CIDS/ DEU A NORM MID 2 RH | 176RH | C06 |
| 2001VU | CIDS/ DEU A NORM MID 2 LH | 175RH | C05 |
Subtask 23-73-62-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Return to Seat sign in the upper service cabinet door
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Install the RTS sign (3) in the service unit (9).
(5) Install the upper cover (1) (where applicable).
(6) Make sure that the work area is clean and clear of tools and other items.
(7) Close the lower service cabinet door (6).
Subtask 23-73-62-420-056-A ** ON A/C NOT FOR ALL (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Install the RTS sign (3) in the service unit (9).
NOTE: Make sure that you hear a click when the RTS sign locks in position.
(4) Install the upper service cabinet door (8) with the washers (4) and the screws (5). (5) Install the upper cover (1) (where applicable).
(6) Make sure that the work area is clean and clear of tools and other items.
(7) Close the lower service cabinet door (6).
B. Installation of the Return to Seat sign in the cabinet door
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Install the RTS sign (4) in the service unit (1).
(5) Close the service cabinet door (5).
Subtask 23-73-62-865-074-A ** ON A/C NOT FOR ALL (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Install the RTS sign (4) in the service unit (1).
NOTE: Make sure that you hear a click when the RTS sign locks into position.
(4) Make sure that the work area is clean and clear of tools and other items.(5) Close the service cabinet door (5).
C. Remove the safety clips and tags and close these circuit breakers in this sequence:
Subtask 23-73-62-869-050-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2001VU | CIDS/ DEU A NORM MID 2 RH | 176RH | C06 |
| 2001VU | CIDS/ DEU A NORM MID 2 LH | 175RH | C05 |
| 2001VU | CIDS/ DEU A NORM AFT RH | 174RH | C08 |
| 2001VU | CIDS/ DEU A NORM AFT LH | 173RH | C07 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU A NORM/L AFT | 167RH | M13 |
| 121VU | COM NAV/CIDS/DEU A NORM/R AFT | 168RH | M14 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU A NORM/L FWD | 163RH | M10 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU A NORM/L FWD | 163RH | M09 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/DEU A ESS/LINE 2 | 155RH | G05 |
| 49VU | COM/CIDS/DEU A ESS/LINE 1 | 154RH | G04 |
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
D. Aircraft Maintenance Configuration
(1) Make sure that the Cabin Intercommunication Data System (CIDS) is energized
(Ref. AMM TASK 23-73-00-861-001).
(2) Do the BITE test of the Cabin Intercommunication Data System (CIDS) (Ref. AMM TASK 23-73-00-740-005).
Subtask 23-73-62-710-050-A ** ON A/C NOT FOR ALL (1) Make sure that the Cabin Intercommunication Data System (CIDS) is energized
(Ref. AMM TASK 23-73-00-861-001).
(2) Do the BITE test of the Cabin Intercommunication Data System (CIDS) (Ref. AMM TASK 23-73-00-740-005).
E. Do this test
5. Close-up| ACTION | RESULT |
|---|---|
| 1.In the cockpit, on the overhead panel 25VU: | In the related lavatory: |
|
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Subtask 23-73-62-862-050-A ** ON A/C NOT FOR ALL
Return to Seat Sign