Procedure after a Change of Aircraft Registration Number

TASK 23-11-00-860-001-A
Procedure after a Change of Aircraft Registration Number

ZONE: 120

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	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
120	AVIONICS COMPARTMENT

C. Referenced Information

REFERENCE	DESIGNATION
AWM 231107

3. Job Set-up
Subtask 23-11-00-865-059-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	HF1	1RE1	HA14
** ON A/C NOT FOR ALL
121VU	COM NAV/HF2	1RE2	L13

4. Procedure
Subtask 23-11-00-860-063-A ** ON A/C NOT FOR ALL

A. Procedure to change the ICAO address
(1) Take the ICAO address and convert it into binary format
(a) Find the plug to be pin-programmed AWM 231107
(b) Connect the pin-programming according to the binary format of the ICAO address.
Any pin to be coded "1" on the plug, must be connected to the common pin <C of the same plug.

NOTE: Pin A of the plug is MSB

NOTE: For example, ICAO address 76CD46 (hexadecimal)/35546506 (octal) must be converted into 0111 0110 1100 1101 0100 0110 (binary).
Thus, pins B, C, D, F, G, J, K, N, P, S, U, Y, and Z of the plug must be connected to pin <C AWM 231107.

Subtask 23-11-00-860-066-A ** ON A/C NOT FOR ALL

B. Check of the ICAO Address

ACTION	RESULT
On the MCDU:	On the MCDU:
1.Adjust the brightness of the MCDU screen.	The MCDU is on.
2.Push the MCDU MENU mode key.	The MCDU MENU page comes into view.
3.Push the line key adjacent to the ATSU indication.	The ATSU DATALINK page comes into view.
4.Push the line key adjacent to the COMM MENU indication.	The COMM MENU page comes into view.
5.Push the line key adjacent to the MAINTENANCE indication.	The MAINTENANCE HFDR1 page comes into view.
6.Push the NEXT PAGE select key to get the MAINTENANCE HFDR1 page 2/4.	The MAINTENANCE HFDR1 page comes into view with the ICAO address shown on line 2L.
7.Push the line key adjacent to the RETURN indication.	The MCDU MENU page comes into view.

Subtask 23-11-00-865-060-A ** ON A/C NOT FOR ALL

C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	HF1	1RE1	HA14
** ON A/C NOT FOR ALL
121VU	COM NAV/HF2	1RE2	L13

[Rev.10 from 2021] 2026.04.02 06:11:56 UTC