Different Software on SDF Boards

TASK 26-17-00-810-818-A
Different Software on SDF Boards

1. Possible Causes

CIDS OBRM [116RH]
DIR-CIDS, 1 [101RH]
DIR-CIDS, 2 [102RH]

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Referenced Information

REFERENCE	DESIGNATION
AMM 23-73-00-869-001	OBRM - Download Procedure
AMM 23-73-21-960-001	Replacement of the On-Board Replaceable Module
AMM 23-73-34-000-001	Removal of the CIDS Director
AMM 23-73-34-400-001	Installation of the CIDS Director
AMM 26-10-00-740-802	Ground Scanning of the Cabin Intercommunication Data-System (CIDS) - Smoke Detection Function (SDF)

3. Fault Confirmation
Subtask 26-17-00-865-066-A ** ON A/C NOT FOR ALL

A. Table of the circuit breakers used in this procedure:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR COND/CIDS/SDF/DIR2 ESS	18WH	C06
49VU	AIR COND/CIDS/SDF/DIR1 ESS	15WH	C05
122VU	AIR COND/CIDS/SDF/DIR NORM/2	14WH	T18
122VU	AIR COND/CIDS/SDF/DIR NORM/1	17WH	T17

Subtask 26-17-00-710-079-B ** ON A/C NOT FOR ALL

B. Test
(1) Do the reset of the CIDS-SDF:

NOTE: BITE message OBRM/ CIDS(101RH)-SDF1 OBRM SW MISMATCH can occur spuriously. If message is spurious, it will disappear after reset of the CIDS-SDF.

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

15WH and 18WH on the panel 49VU.
14WH and 17WH on the panel 122VU.

(b) After few seconds remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

15WH and 18WH on the panel 49VU.
14WH and 17WH on the panel 122VU.

(2) Do the ground scanning of the Cabin Intercommunication Data System (CIDS) - Smoke Detection Function (SDF) AMM 26-10-00-740-802.

Subtask 26-17-00-710-079-C ** ON A/C NOT FOR ALL

B. Test
(1) Do the reset of the CIDS-SDF:

NOTE: BITE message OBRM/ CIDS(101RH)-SDF1 OBRM SW MISMATCH can occur spuriously. If message is spurious, it will disappear after reset of the CIDS-SDF.

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

15WH and 18WH on the panel 49VU.
14WH and 17WH on the panel 122VU.

(b) After few seconds remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

15WH and 18WH on the panel 49VU.
14WH and 17WH on the panel 122VU.

(2) Do the ground scanning of the Cabin Intercommunication Data System (CIDS) - Smoke Detection Function (SDF) AMM 26-10-00-740-802.

4. Fault Isolation
Subtask 26-17-00-810-115-A ** ON A/C NOT FOR ALL

A. If the test gives a maintenance message which is different from the maintenance message given in step B:

Do the trouble shooting procedure related to the maintenance message.

Subtask 26-17-00-810-116-A ** ON A/C NOT FOR ALL

B. If the test gives the maintenance message

OBRM/ CIDS(101RH)-SDF1 CHANNELS SW MISMATCH or
OBRM/ CIDS(102RH)-SDF2 CHANNELS SW MISMATCH or
OBRM/ CIDS(101RH)-SDF1 OBRM SW MISMATCH or
OBRM/ CIDS(102RH)-SDF2 OBRM SW MISMATCH:

(1) Make sure that the related part number of the On-Board Replaceable Module (OBRM) is installed into the OBRM slot.
(a) If the related OBRM part number is installed in the OBRM slot, go to step (2).
(b) If the OBRM part number is wrong:

Install the related CIDS OBRM [116RH] AMM 23-73-21-960-001.

(2) If the fault continues:

Make sure that the related part number of the CIDS director is installed in the director slots.

(a) If the related CIDS director part number is installed in the director slot, go to step (3).
(b) If the CIDS director part number is wrong:

Replace the related DIR-CIDS, 1 [101RH] or DIR-CIDS, 2 [102RH] AMM 23-73-34-000-001 and AMM 23-73-34-400-001.

(3) If the fault continues:

On the software loading page at the Flight Attendant Panel (FAP), make sure that the correct software is installed on the CIDS and the OBRM.

(a) If the OBRM software is wrong:

Do the OBRM download procedure AMM 23-73-00-869-001.

Subtask 26-17-00-710-085-A ** ON A/C NOT FOR ALL

C. Test
(1) Do the test given in Para. 3.

Subtask 26-17-00-810-115-B ** ON A/C NOT FOR ALL

D. If the test gives a maintenance message which is different from the maintenance message given in step B:

Do the trouble shooting procedure related to the maintenance message.

Subtask 26-17-00-810-116-B ** ON A/C NOT FOR ALL

E. If the test gives the maintenance message

OBRM/ CIDS(101RH)-SDF1 CHANNELS SW MISMATCH or
OBRM/ CIDS(102RH)-SDF2 CHANNELS SW MISMATCH or
OBRM/ CIDS(101RH)-SDF1 OBRM SW MISMATCH or
OBRM/ CIDS(102RH)-SDF2 OBRM SW MISMATCH:

Install the related CIDS OBRM [116RH] AMM 23-73-21-960-001.

(2) If the fault continues:

Make sure that the related part number of the CIDS director is installed in the director slots.

(a) If the related CIDS director part number is installed in the director slot, go to step (3).
(b) If the CIDS director part number is wrong:

Replace the related DIR-CIDS, 1 [101RH] or DIR-CIDS, 2 [102RH] AMM 23-73-34-000-001 and AMM 23-73-34-400-001.

(3) If the fault continues:

On the software loading page at the Flight Attendant Panel (FAP), make sure that the correct software is installed on the CIDS and the OBRM.

(a) If the OBRM software is wrong:

Do the OBRM download procedure AMM 23-73-00-869-001.

Subtask 26-17-00-710-085-B ** ON A/C NOT FOR ALL

F. Test
(1) Do the test given in Para. 3.

5. Close-up
Subtask 26-17-00-860-064-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Put the aircraft back to its initial configuration.

Subtask 26-17-00-860-064-B ** ON A/C NOT FOR ALL

A. Close Access
(1) Put the aircraft back to its initial configuration.

[Rev.8 from Aug 2018] 2026.04.04 04:27:21 UTC