Installation of the Altitude Pressure Switch
TASK 38-31-69-400-001-A
Installation of the Altitude Pressure Switch
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
B. Referenced Information
3. Job Set-up
Subtask 38-31-69-860-050-A ** ON A/C NOT FOR ALL
Subtask 38-31-69-420-050-A ** ON A/C NOT FOR ALL
Subtask 38-31-69-410-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 01:20:58 UTC
Installation of the Altitude Pressure Switch
FIN: 43MG ** ON A/C NOT FOR ALL
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 312AR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-42-00-861-001-A | Energize the Ground Service Network from the External Power |
| TASK 24-42-00-862-001-A | De-energize the Ground Service Network Supplied from the External Power |
| TASK 38-31-00-710-002-A | Operational Test of the Vacuum Toilet System |
Subtask 38-31-69-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized from the external power (Ref. AMM TASK 24-42-00-861-001).
Subtask 38-31-69-865-059-A ** ON A/C NOT FOR ALL (1) Make sure that the ground service network is energized from the external power (Ref. AMM TASK 24-42-00-861-001).
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 | |||
| 2001VU | VACU TOIL SYS-VACUUM-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-GEN | 33MG | A08 |
| 2001VU | VACU TOIL SYS-LAV PWR-E | 34MG | A04 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-A | 32MG | A01 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-SYS | 35MG | A06 |
| 2001VU | VACU TOIL SYS-LAV PWR-L | 45MG | A02 |
Subtask 38-31-69-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Altitude Pressure Switch 43MG
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Install the altitude pressure switch (1).
(4) Install the washers (3) and the bolts (4).
(5) Make sure that all the electrical connections are clean and in the correct condition.
(6) Connect the electrical connector (5).
Subtask 38-31-69-865-060-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 altitude pressure switch (1).
(4) Install the washers (3) and the bolts (4).
(5) Make sure that all the electrical connections are clean and in the correct condition.
(6) Connect the electrical connector (5).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 38-31-69-710-050-A ** ON A/C NOT FOR ALL 5. Close-up| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-GEN | 33MG | A08 |
| 2001VU | VACU TOIL SYS-LAV PWR-E | 34MG | A04 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-A | 32MG | A01 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-SYS | 35MG | A06 |
| 2001VU | VACU TOIL SYS-LAV PWR-L | 45MG | A02 |
Subtask 38-31-69-410-050-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 312AR.
(3) Remove the access platform(s).
Subtask 38-31-69-862-050-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 312AR.
(3) Remove the access platform(s).
Altitude Pressure Switch 43MG