Removal of the Lighted Icing Indicator

TASK 30-81-21-000-001-A
Removal of the Lighted Icing Indicator

WARNING: MAKE SURE THAT THE CIRCUIT BREAKERS RELATED TO THE WEATHER RADAR ARE OPENED, SAFETIED AND TAGGED.

FIN: 16DD

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Referenced Information

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)
ESPM 2043130
Lighted Icing Indicator

3. Job Set-up
Subtask 30-81-21-861-051-A

A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 30-81-21-010-051-A

B. Get Access
(1) Put an ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position on the side of the aircraft to get access to the lighted icing indicator.
(2) Remove the lining panel 211MW.

Subtask 30-81-21-865-053-A

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	LIGHTING/STBY/COMP/LIGHT	1LF	H04
** ON A/C NOT FOR ALL
49VU	LIGHTING/STBY/COMP/LIGHT	1LF	H02
** ON A/C ALL
121VU	COM NAV/RADAR/1	5SQ1	K13
** ON A/C NOT FOR ALL
121VU	COM NAV/RADAR/2	5SQ2	K14
** ON A/C ALL
122VU	ANTI ICE/WINDOWS/R	4DG2	W14
122VU	ANTI ICE/WHC/2	5DG2	W13
122VU	ANTI ICE/WINDOWS/L	4DG1	X14
122VU	ANTI ICE/WHC/1	5DG1	X13
123VU	ANTI ICE/L/WHSLD	1DG1	AF10
123VU	ANTI ICE/R/WHSLD	1DG2	AF03

4. Procedure
Subtask 30-81-21-020-051-A

A. Removal of the Lighted Icing Indicator

NOTE: Two persons are necessary to remove the lighted icing indicator:

One person out of the aircraft to hold the lighted icing indicator.
A second person in the aircraft to remove the lighted icing indicator.

(1) Remove and discard the cable ties (5) that attach the electrical cables (4) against the draining pipe (8).
(2) Disconnect the electrical cables from the splice (6) then discard the splice ESPM 2043130 .
(3) Remove the nut (1), the washer (2) and the icing indicator (3).
(4) Clean the remaining sealant.

[Rev.10 from 2021] 2026.04.01 04:01:27 UTC