Removal of the No Smoking/No PED/No Mobile/Fasten Seat Belt sign

TASK 23-73-63-000-802-A
Removal of the No Smoking/No PED/No Mobile/Fasten Seat Belt sign

WARNING: BE VERY CAREFUL WHEN YOU DO WORK ON CIRCUIT BREAKER PANELS. THERE IS A HIGH VOLTAGE BEHIND THESE PANELS.

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

REFERENCE	QTY	DESIGNATION
No specific	1	SCREWDRIVER - SMALL
No specific	1	STEPLADDER 1.0 M (3.3 FT)
FOR [534RH] (SIGN-NO SMOKING/FASTEN SEAT BELT)
FOR [535RH] (SIGN-NO SMOKING/FASTEN SEAT BELT)
No specific	1	STEPLADDER 1.0 M (3.3 FT)

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)
TASK 23-73-00-00	CABIN INTERCOMMUNICATION DATA SYSTEM (CIDS) - DESCRIPTION AND OPERATION
TASK 23-73-00-00-01	CABIN INTERCOMMUNICATION DATA SYSTEM (CIDS) - DESCRIPTION AND OPERATION
No Smoking/No Portable Electronic Device/No Mobile/Fasten Seat Belt signs

3. Job Set-up
Subtask 23-73-63-861-066-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) For the location of this component, refer to paragraph Component Location
(Ref. AMM D/O 23-73-00-00).

Subtask 23-73-63-865-104-A ** ON A/C NOT FOR ALL

B. Open, safety and tag these circuit breakers in this sequence:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	COM/CIDS/DEU A BAT/LINE 1	144RH	N13
121VU	COM/CIDS/DEU A BAT/LINE 2	145RH	N14
** ON A/C NOT FOR ALL
121VU	COM/CIDS/DEU A BAT/FWD R	258RH	N14
121VU	COM/CIDS/DEU A BAT/L FWD	259RH	N13
121VU	COM/CIDS/DEU A BAT/AFT R	272RH	Q11
121VU	COM/CIDS/DEU A BAT/AFT L	279RH	Q10
** ON A/C NOT FOR ALL
121VU	DEU A BAT MID L	295RH	M12
121VU	DEU A BAT MID R	296RH	M13
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DEU A ESS/LINE 1	154RH	G04
49VU	COM/CIDS/DEU A ESS/LINE 2	155RH	G05
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DEU A ESS/FWD R	158RH	HA10
49VU	COM/CIDS/DEU A ESS/FWD L	159RH	HA09
49VU	COM/CIDS/DEU A ESS/AFT R	172RH	HA12
49VU	COM/CIDS/DEU A ESS/AFT L	179RH	HA11
** ON A/C NOT FOR ALL
49VU	COM / CIDS / DEU A ESS / MID L	195RH	G04
49VU	COM / CIDS / DEU A ESS / MID R	196RH	G05
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DEU A ESS/1 L	463RH	HA09
49VU	COM/CIDS/DEU A ESS/1 R	464RH	HA10
49VU	COM/CIDS/DEU A ESS/2 L	465RH	HA11
49VU	COM/CIDS/DEU A ESS/2 R	466RH	HA12
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L FWD	163RH	M10
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L FWD	163RH	M09
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R FWD	164RH	M11
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R FWD	164RH	M10
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L MID	165RH	M11
121VU	COM NAV/CIDS/DEU A NORM/R MID	166RH	M12
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M11
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M13
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R AFT	168RH	M12
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R AFT	168RH	M14
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L FWD	663RH	M09
121VU	COM NAV/CIDS/DEU A NORM/R FWD	664RH	M10
121VU	COM NAV/CIDS/DEU A NORM/L MID	665RH	M11
121VU	COM NAV/CIDS/DEU A NORM/R MID	666RH	M12
121VU	COM NAV/CIDS/DEU A NORM/L AFT	667RH	M13
121VU	COM NAV/CIDS/DEU A NORM/R AFT	668RH	M14
** ON A/C NOT FOR ALL
2001VU	CIDS-DEU A NORM-AFT-LH	173RH	C06
2001VU	CIDS-DEU A NORM-AFT-RH	174RH	C07
2001VU	CIDS-DEU A NORM-MID-LH	197RH	C04
2001VU	CIDS-DEU A NORM-MID-RH	198RH	C05

4. Procedure
Subtask 23-73-63-020-066-A ** ON A/C NOT FOR ALL

A. Removal of the No Smoking/No Portable Electronic Devices/No Mobile/Fasten Seat Belt (NS/No PED/NM/FSB) signs
(1) Remove the sign from the Passenger Service Unit (PSU):
(a) Remove the section hose (1) from one side of the mounting rail (2).
(b) Pull and lower the related PSU (3) to get access to the sign (4).
(c) Release the spring clips (5) with a SCREWDRIVER - SMALL and lower the sign (4).
(d) Identify all the electrical wires, before you disconnect them.
(e) Disconnect the electrical connector (6).
(f) Remove the sign (4).
(2) FOR [534RH] (SIGN-NO SMOKING/FASTEN SEAT BELT), [535RH] (SIGN-NO SMOKING/FASTEN SEAT BELT)
Remove the sign from circuit breaker panel 2000VU and 2001VU:
(a) Put a STEPLADDER 1.0 M (3.3 FT) in position below the related circuit breaker panel.
(b) Release the spring clips (7) with a SCREWDRIVER - SMALL and lower the sign (8).
(c) Identify all the electrical wires, before you disconnect them.
(d) Disconnect the electrical connector (9).
(e) Remove the sign (8) from the related circuit breaker panel.
(f) Remove the stepladder.
(3) Remove the sign from the cabin area:

NOTE: This step is applicable for FIN 543RH, 544RH, 546RH, 588RH1 and 588RH2.

(a) Put a STEPLADDER 1.0 M (3.3 FT) in position below the related sign, if necessary.
(b) Release the spring clips (11) with a SCREWDRIVER - SMALL and lower the sign (10).
(c) Identify all the electrical wires, before you disconnect them.
(d) Disconnect the electrical connector (12).
(e) Remove the sign (10).
(f) Remove the stepladder.

[Rev.10 from 2021] 2026.03.31 23:19:09 UTC