Removal of the Stand-Alone Passenger Interface and Supply Adapter (StA-PISA)
TASK 33-27-41-000-001-A
Removal of the Stand-Alone Passenger Interface and Supply Adapter (StA-PISA)
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 33-27-41-010-050-G ** ON A/C NOT FOR ALL
Subtask 33-27-41-020-050-B ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 00:54:06 UTC
Removal of the Stand-Alone Passenger Interface and Supply Adapter (StA-PISA)
WARNING:
MAKE SURE THAT NO AC OR DC POWER IS CONNECTED TO THE AIRCRAFT ELECTRICAL CIRCUITS.
THERE IS A RISK OF ELECTROCUTION IF THE AC OR DC POWER STAYS CONNECTED.
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 - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | 1 | STEPLADDER 0.5 M (1.6 FT) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 121AL |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 33-27-00-00 | LIGHT - WORK, CABIN ATTENDANT - DESCRIPTION AND OPERATION |
Subtask 33-27-41-010-050-G ** ON A/C NOT FOR ALL
A. Get Access
(1) Put the ACCESS PLATFORM 1M(3 FT) in position at the access door 121AL.
(2) Open the access door 121AL.
(3) Put the STEPLADDER 0.5 M (1.6 FT) in position below the related StA-PISA.
Subtask 33-27-41-865-050-A ** ON A/C NOT FOR ALL (1) Put the ACCESS PLATFORM 1M(3 FT) in position at the access door 121AL.
(2) Open the access door 121AL.
(3) Put the STEPLADDER 0.5 M (1.6 FT) in position below the related StA-PISA.
NOTE: For location of StA-PISA refer to (Ref. AMM D/O 33-27-00-00).
B. Open, safety and tag this(these) circuit breaker(s):
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 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/DEU B/ESS | 153RH | G03 |
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/CIDS/SDF/DIR2 ESS | 18WH | C06 |
| 49VU | AIR COND/CIDS/SDF/DIR1 ESS | 15WH | C05 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM NAV/CIDS/DIR2 ESS | 157RH | G02 |
| 49VU | COM NAV/CIDS/DIR1 ESS | 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 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU A NORM/R FWD | 164RH | M10 |
| 121VU | COM NAV/CIDS/DEU A NORM/L FWD | 163RH | M09 |
| 121VU | COM NAV/CIDS/DEU B/NORM | 162RH | M08 |
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M06 |
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU A NORM/R AFT | 168RH | M12 |
| 121VU | COM NAV/CIDS/DEU A NORM/L AFT | 167RH | M11 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU A NORM/R FWD | 164RH | M11 |
| 121VU | COM NAV/CIDS/DEU A NORM/L FWD | 163RH | M10 |
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M07 |
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M06 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR2 NORM | 156RH | M06 |
| 121VU | COM NAV/CIDS/DIR1 NORM | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | ELEC/EXT PWR/LT CLT/NOT IN/USE | 6XG | X30 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/CIDS/SDF/DIR NORM/2 | 14WH | T18 |
| 122VU | AIR COND/CIDS/SDF/DIR NORM/1 | 17WH | T17 |
| ** ON A/C NOT FOR ALL | |||
| 2000VU | LIGHT-ATTND-WORK | 1LZ | J03 |
Subtask 33-27-41-020-050-B ** ON A/C NOT FOR ALL
A. Removal of the Stand Alone Passenger Interface and Supply Adapter (StA-PISA)
(b) Release the detent hook and lower one side of the related circuit breaker panel until it hangs in the vertical position.
(2) Do the subsequent steps to remove the StA-PISA:
(a) Identify the electrical connectors (6), (7) and (8) and make a note of their position before you disconnect them.
(b) Release the related spring latches (4),(5) and (9) and carefully disconnect three electrical connectors (6), (7) and (8) from the StA-PISA (1).
(c) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(d) Make a note of the position of the StA-PISA (1) before you remove it.
(e) Make a note of the position of the cable clips which keep the related cable loom in position.
(f) Hold the StA-PISA (1) and remove the screws (2), the washers (3) and the related cable clips.
(g) Remove the StA-PISA (1).
(h) If you do not install a new StA-PISA directly after the removal, make sure you close the related circuit breaker panel before you leave the A/C.
Subtask 33-27-41-020-050-H ** ON A/C NOT FOR ALL NOTE: The removal procedure for the StA-PISA is the same. Only one procedure is given. For location of StA-PISA refer to (Ref. AMM D/O 33-27-00-00).
(1) Do the subsequent steps to open the related circuit breaker panel: WARNING:
BE VERY CAREFUL WHEN YOU DO WORK ON CIRCUIT BREAKER PANELS. THERE IS A HIGH VOLTAGE BEHIND THESE PANELS.
(a) Release the quick-release fasteners and lower the related circuit breaker panel carefully. The circuit breaker panel is held to the adjacent center ceiling panel by a detent hook. (b) Release the detent hook and lower one side of the related circuit breaker panel until it hangs in the vertical position.
(2) Do the subsequent steps to remove the StA-PISA:
(a) Identify the electrical connectors (6), (7) and (8) and make a note of their position before you disconnect them.
(b) Release the related spring latches (4),(5) and (9) and carefully disconnect three electrical connectors (6), (7) and (8) from the StA-PISA (1).
(c) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(d) Make a note of the position of the StA-PISA (1) before you remove it.
(e) Make a note of the position of the cable clips which keep the related cable loom in position.
(f) Hold the StA-PISA (1) and remove the screws (2), the washers (3) and the related cable clips.
(g) Remove the StA-PISA (1).
(h) If you do not install a new StA-PISA directly after the removal, make sure you close the related circuit breaker panel before you leave the A/C.
A. Removal of the Stand Alone Passenger Interface and Supply Adapter (StA-PISA)
(b) Release the detent hook and lower one side of the related circuit breaker panel until it hangs in the vertical position.
(2) Do the subsequent steps to remove the StA-PISA:
(a) Identify the electrical connectors (6) and (7) and make a note of their position before you disconnect them.
(b) Release the related spring latches (4) and (5) and carefully disconnect two electrical connectors (6) and (7) from the StA-PISA (1).
(c) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(d) Make a note of the position of the StA-PISA (1) before you remove it.
(e) Make a note of the position of the cable clips which keep the related cable loom in position.
(f) Hold the StA-PISA (1) and remove the screws (2), the washers (3) and the related cable clips.
(g) Remove the StA-PISA (1).
(h) If you do not install a new StA-PISA directly after the removal, make sure you close the related circuit breaker panel before you leave the A/C.
NOTE: The removal procedure for the StA-PISA is the same. Only one procedure is given. For location of StA-PISA refer to (Ref. AMM D/O 33-27-00-00).
(1) Do the subsequent steps to open the related circuit breaker panel: WARNING:
BE VERY CAREFUL WHEN YOU DO WORK ON CIRCUIT BREAKER PANELS. THERE IS A HIGH VOLTAGE BEHIND THESE PANELS.
(a) Release the quick-release fasteners and lower the related circuit breaker panel carefully. The circuit breaker panel is held to the adjacent center ceiling panel by a detent hook. (b) Release the detent hook and lower one side of the related circuit breaker panel until it hangs in the vertical position.
(2) Do the subsequent steps to remove the StA-PISA:
(a) Identify the electrical connectors (6) and (7) and make a note of their position before you disconnect them.
(b) Release the related spring latches (4) and (5) and carefully disconnect two electrical connectors (6) and (7) from the StA-PISA (1).
(c) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(d) Make a note of the position of the StA-PISA (1) before you remove it.
(e) Make a note of the position of the cable clips which keep the related cable loom in position.
(f) Hold the StA-PISA (1) and remove the screws (2), the washers (3) and the related cable clips.
(g) Remove the StA-PISA (1).
(h) If you do not install a new StA-PISA directly after the removal, make sure you close the related circuit breaker panel before you leave the A/C.
Stand-Alone Passenger Interface and Supply Adapter (StA-PISA)