W DOC AIRBUS | TSM A320F

FAP - Fault in the Forward Attendant Panel

TASK 23-73-00-810-838-A
FAP - Fault in the Forward Attendant Panel

1. Possible Causes
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
ASM 237309
AMM 23-73-12-000-002
Removal of the Forward Attendant Panel
AMM 23-73-12-400-002
Installation of the Forward Attendant Panel
AMM 23-73-34-400-001
Installation of the CIDS Director
3. Fault Confirmation
Subtask 23-73-00-710-056-A ** ON A/C NOT FOR ALL
A. Test
   (1) Do the FAP test through the CFDS.
4. Fault Isolation
Subtask 23-73-00-865-057-A ** ON A/C NOT FOR ALL
A. Table of the circuit breakers used in this procedure:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUCOM/CIDS/DIR ESS/2157RHG02
49VUCOM/CIDS/DIR ESS/1150RHG01
121VUCOM NAV/CIDS/DIR NORM/2156RHM06
121VUCOM NAV/CIDS/DIR NORM/1151RHM05
Subtask 23-73-00-810-057-A ** ON A/C NOT FOR ALL
B. If the test gives a different maintenance message, do the trouble shooting procedure related to the maintenance message.
Subtask 23-73-00-810-145-A ** ON A/C NOT FOR ALL
C. If the CFDS gives the maintenance message FWD ATTND PNL:
Subtask 23-73-00-810-146-F ** ON A/C NOT FOR ALL
D. If the fault continues:
  • make sure that at least one cabin door is open,
  • make sure that the EMER LT (4WL) switch is in the OFF position,
  • open these CBs:
    49VU: 150RH (G01) COM DIR ESS/1
    49VU: 157RH (G02) COM DIR ESS/2
    121VU:151RH (M05) CIDS/DIR NORM/1
    121VU:156RH (M06) CIDS/DIR NORM/2,
  • wait for approx. 10 s and close the CBs 156RH and 157RH.
  • stop for approx. 120 s,
  • do the FAP test again.
   (1) If the test is OK:
Subtask 23-73-00-810-147-A ** ON A/C NOT FOR ALL
E. If the fault continues:
  • do a check and repair the wiring between:
    CB 170RH and the FAP (120RH) connector A/18,
    DIR-CIDS (101RH) connector AA/A12 and FAP (120RH) connector A/1,
    DIR-CIDS (101RH) connector AA/B12 and FAP (120RH) connector A/2,
    DIR-CIDS (101RH) connector AA/D12 and FAP (120RH) connector A/4,
    DIR-CIDS (101RH) connector AA/E12 and FAP (120RH) connector A/5,
    DIR-CIDS (102RH) connector AA/A12 and FAP (120RH) connector A/7,
    DIR-CIDS (102RH) connector AA/B12 and FAP (120RH) connector A/8,
    DIR-CIDS (102RH) connector AA/D12 and FAP (120RH) connector A/4,
    DIR-CIDS (102RH) connector AA/E12 and FAP (120RH) connector A/5,
    FAP (120RH) connector A/3 and GND,
    FAP (120RH) connector A/6 and GND,
    FAP (120RH) connector A/17 and GND ASM 237309.
Subtask 23-73-00-810-148-A ** ON A/C NOT FOR ALL
F. Install the removed DIR-CIDS (101RH) AMM 23-73-34-400-001.
Subtask 23-73-00-810-149-A ** ON A/C NOT FOR ALL
G. Do the test given in Para. 3.A.
[Rev.8 from Aug 2018] 2026.04.04 04:38:59 UTC
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