Removal of the Pack Outlet - Temperature Sensors
TASK 21-61-15-000-001-A
Removal of the Pack Outlet - Temperature Sensors
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 21-61-15-861-050-A Subtask 21-61-15-865-050-A
Subtask 21-61-15-020-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:48:55 UTC
Removal of the Pack Outlet - Temperature Sensors
WARNING:
MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING SYSTEM FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE.
HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
NOTE: The procedure is the same for pack-outlet temperature sensor 13HH and 34HH.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | CAP - BLANKING |
| No specific | AR | PLUG - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [13HH] (SENSOR-PACK OUTLET TEMP) | |
| 191BB | |
| FOR [34HH] (SENSOR-PACK OUTLET TEMP) | |
| 192FB | |
| REFERENCE | DESIGNATION |
|---|---|
| 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 53-35-13-000-002-A | Removal of the Quick-Release Access Panels from the Belly Fairing Structure |
Subtask 21-61-15-861-050-A Subtask 21-61-15-865-050-A
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 21-61-15-010-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 13HH (SENSORPACK OUTLET TEMP) | |||
| 49VU | AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC | 52HH | D08 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/PACK TEMP/CTL SYS1/1/115VAC | 1HH | X22 |
| 122VU | AIR COND/PACK TEMP/CTL SYS1/1/28VDC | 3HH | X21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/1/28VDC | 4HH | Y19 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/1/115VAC | 2HH | Y18 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/TEMP CTL SYS 1/CHAN A/115VAC | 49HH | X22 |
| 122VU | AIR COND/TEMP CTL SYS 1/CHAN A/28VDC | 51HH | X21 |
| 122VU | AIR COND/TEMP CTL SYS 1/CHAN B/115VAC | 50HH | Y18 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 34HH (SENSORPACK OUTLET TEMP) | |||
| 122VU | AIR COND/PACK TEMP/CTL SYS1/2/115VAC | 21HH | W22 |
| 122VU | AIR COND/PACK TEMP/CTL SYS1/2/28VDC | 23HH | W21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/2/28VDC | 24HH | Y21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/2/115VAC | 22HH | Y20 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN A/115VAC | 53HH | W22 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN A/28VDC | 55HH | W21 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN B/28VDC | 56HH | Y21 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN B/115VAC | 54HH | Y20 |
C. Get Access
(1) Remove the access panel/s (Ref. AMM TASK 53-35-13-000-002).
(a) FOR [13HH] (SENSOR-PACK OUTLET TEMP)
(b) FOR [34HH] (SENSOR-PACK OUTLET TEMP)
4. Procedure(1) Remove the access panel/s (Ref. AMM TASK 53-35-13-000-002).
(a) FOR [13HH] (SENSOR-PACK OUTLET TEMP)
(b) FOR [34HH] (SENSOR-PACK OUTLET TEMP)
Subtask 21-61-15-020-051-A ** ON A/C NOT FOR ALL
A. Removal of the Pack Outlet-Temperature Sensor
(1) Disconnect the electrical connector (2).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove and discard the lockwire.
(4) Remove the pack outlet-temperature sensor (1).
(5) Put the PLUG-BLANKING in each disconnected line end.
(6) Remove and discard the packing (3) from the pack outlet-temperature sensor (1).
(7) Put the PLUG-BLANKING in each disconnected line end.
Subtask 21-61-15-020-051-B ** ON A/C NOT FOR ALL (1) Disconnect the electrical connector (2).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove and discard the lockwire.
(4) Remove the pack outlet-temperature sensor (1).
(5) Put the PLUG-BLANKING in each disconnected line end.
(6) Remove and discard the packing (3) from the pack outlet-temperature sensor (1).
(7) Put the PLUG-BLANKING in each disconnected line end.
A. Removal of the Pack Outlet-Temperature Sensor
(1) Disconnect the electrical connector (2).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove and discard the lockwire.
(4) Remove the pack outlet-temperature sensor (1).
(5) Put the PLUG-BLANKING in each disconnected line end.
(6) Remove and discard the packings (3) and the washer (4) from the pack outlet-temperature sensor (1).
(7) Put the PLUG-BLANKING in each disconnected line end.
(1) Disconnect the electrical connector (2).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove and discard the lockwire.
(4) Remove the pack outlet-temperature sensor (1).
(5) Put the PLUG-BLANKING in each disconnected line end.
(6) Remove and discard the packings (3) and the washer (4) from the pack outlet-temperature sensor (1).
(7) Put the PLUG-BLANKING in each disconnected line end.
Pack Outlet - Temperature Sensor