Installation of the Ice Detector
TASK 30-81-31-400-001-A
Installation of the Ice Detector
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 30-81-31-860-050-A ** ON A/C NOT FOR ALL
Subtask 30-81-31-420-050-A ** ON A/C NOT FOR ALL
Subtask 30-81-31-410-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 00:33:10 UTC
Installation of the Ice Detector
WARNING:
MAKE SURE THAT THE CIRCUIT BREAKERS RELATED TO THE WEATHER RADAR ARE OPENED, SAFETIED AND TAGGED.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 2M (6 FT) |
| No specific | Torque wrench: range to between 0.44 and 0.36 m.daN (38.94 and 31.86 lbf.in ) ![]() |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.06AAB1) | Polysulfide Sealant-General Purpose Fillet - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 811 |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 2 | SEAL | AIPC 30-81-01-01-020 |
| 2 | JOINT | AIPC 30-81-81-01-020 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| 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) |
| TASK 30-81-00-710-001-A | Operational Test of the Ice Detection System |
| TASK 52-41-00-010-002-A | Open the Avionics Compartment Doors for Access |
| TASK 52-41-00-410-002-A | Close the Avionics Compartment Doors after Access |
Subtask 30-81-31-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
Subtask 30-81-31-010-051-A ** ON A/C NOT FOR ALL (1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
B. Get access to the avionics compartment.
(1) Make sure that an ACCESS PLATFORM 2M (6 FT) is in position at access door 811.
(2) Make sure that access door 811 is open (Ref. AMM TASK 52-41-00-010-002).
Subtask 30-81-31-865-051-A ** ON A/C NOT FOR ALL (1) Make sure that an ACCESS PLATFORM 2M (6 FT) is in position at access door 811.
(2) Make sure that access door 811 is open (Ref. AMM TASK 52-41-00-010-002).
C. 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 | |||
| 121VU | COM NAV/RADAR/1 | 5SQ1 | K13 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 2DD1 (DETICE, L) | |||
| 122VU | ANTI ICE/ICE DET/L | 4DD1 | V12 |
| FOR FIN: 2DD2 (DETICE, R) | |||
| 122VU | ANTI ICE/ICE DET/R | 4DD2 | V13 |
Subtask 30-81-31-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Ice Detector
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the CAP-BLANKING from each electrical connector and receptacle.
(4) Put a new AIPC 30-81-01-01-020 SEAL (2) in position on the ice detector (4).
(5) Put the ice detector (4) with the joint (2) in position on the structure (1).
(6) Install the screws (5).
(7) TORQUE the screws (5) to between 0.44 and 0.36 m.daN (38.94 and 31.86 lbf.in )
.
(8) Make a sealing bead with Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) around the ice detector (4).
(9) Complete the bonding procedure (Ref. AMM TASK 20-28-00-912-802):
(a) FOR [2DD1] (DET-ICE, L)
The aft bolt and washer at the left side
(b) FOR [2DD2] (DET-ICE, R)
The aft bolt and washer at the right side.
Subtask 30-81-31-420-050-B ** 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) Remove the CAP-BLANKING from each electrical connector and receptacle.
(4) Put a new AIPC 30-81-01-01-020 SEAL (2) in position on the ice detector (4).
(5) Put the ice detector (4) with the joint (2) in position on the structure (1).
(6) Install the screws (5).
(7) TORQUE the screws (5) to between 0.44 and 0.36 m.daN (38.94 and 31.86 lbf.in )
. (8) Make a sealing bead with Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) around the ice detector (4).
(9) Complete the bonding procedure (Ref. AMM TASK 20-28-00-912-802):
(a) FOR [2DD1] (DET-ICE, L)
The aft bolt and washer at the left side
(b) FOR [2DD2] (DET-ICE, R)
The aft bolt and washer at the right side.
CAUTION:
MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.
(10) Connect the electrical connector (3). A. Installation of the Ice Detector
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the CAP-BLANKING from each electrical connector and receptacle.
(4) Put a new AIPC 30-81-81-01-020 JOINT (2) in position on the ice detector (4).
(5) Put the ice detector (4) with the joint (2) in position on the structure (1).
(6) Install the screws (5).
(7) TORQUE the screws (5) to between 0.44 and 0.36 m.daN (38.94 and 31.86 lbf.in )
.
(8) Make a sealing bead with Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) around the ice detector (4).
(9) Complete the bonding procedure (Ref. AMM TASK 20-28-00-912-802):
(a) FOR [2DD1] (DET-ICE, L)
The aft bolt and washer at the left side
(b) FOR [2DD2] (DET-ICE, R)
The aft bolt and washer at the right side.
Subtask 30-81-31-865-052-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) Remove the CAP-BLANKING from each electrical connector and receptacle.
(4) Put a new AIPC 30-81-81-01-020 JOINT (2) in position on the ice detector (4).
(5) Put the ice detector (4) with the joint (2) in position on the structure (1).
(6) Install the screws (5).
(7) TORQUE the screws (5) to between 0.44 and 0.36 m.daN (38.94 and 31.86 lbf.in )
. (8) Make a sealing bead with Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) around the ice detector (4).
(9) Complete the bonding procedure (Ref. AMM TASK 20-28-00-912-802):
(a) FOR [2DD1] (DET-ICE, L)
The aft bolt and washer at the left side
(b) FOR [2DD2] (DET-ICE, R)
The aft bolt and washer at the right side.
CAUTION:
MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.
(10) Connect the electrical connector (3). B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 30-81-31-710-050-A ** ON A/C NOT FOR ALL 5. Close-up| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/RADAR/1 | 5SQ1 | K13 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 2DD1 (DETICE, L) | |||
| 122VU | ANTI ICE/ICE DET/L | 4DD1 | V12 |
| FOR FIN: 2DD2 (DETICE, R) | |||
| 122VU | ANTI ICE/ICE DET/R | 4DD2 | V13 |
Subtask 30-81-31-410-050-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 access door 811 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).
Subtask 30-81-31-862-051-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 access door 811 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).
Ice Detector