W DOC AIRBUS | TSM A320F

ADM Data Coded no Computed Data (NCD) Detected by the ADR1

TASK 34-13-81-810-818-A
ADM Data Coded no Computed Data (NCD) Detected by the ADR1

1. Possible Causes
  • ADM-L TOTAL PRESSURE [19FP1]
  • ADM-R STATIC PRESSURE [19FP4]
  • ADM-L STATIC PRESSURE [19FP5]
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TSM TASK 34-13-81-810-817-A
Only the NAV ADR1 FAULT ECAM Warning is shown in the POST FLIGHT REPORT (PFR)
AMM 34-10-00-860-002
ADIRS Start Procedure
AMM 34-10-00-860-005
ADIRS Stop Procedure
AMM 34-11-17-000-001
Removal of the Air Data Module
AMM 34-11-17-400-001
Installation of the Air Data Module
ASM 341303
3. Fault Confirmation
Subtask 34-13-81-860-050-A
A. Test
   (1) Do the ADIRS start procedure AMM 34-10-00-860-002.
4. Fault Isolation
Subtask 34-13-81-810-067-A
A. If the red SPD and ALT flags are shown on the CAPT PFD:
  • read the POST FLIGHT REPORT (PFR) for the NAV ADR1 FAULT and the maintenance message ADIRU1 : NO ADR - INT1 DATA with source IR1.
   (1) If the PFR gives the NAV ADR1 FAULT ECAM warning with the maintenance message ADIRU1 : NO ADR-INT1 DATA:
   (2) If the PFR does not give the NAV ADR1 FAULT ECAM warning with the maintenance message ADIRU1 : NO ADR-INT1 DATA:
     (a) If the red SPD and ALT flags are shown on the F/O PFD:
  • replace the ADM that you installed in the position of the ADM (19FP2).
     (b) If the red SPD and ALT flags are shown on the CAPT PFD:
  • disconnect the electrical connector of the ADM (19FP1)
  • make sure that there is continuity between pins A/J and K and that there is an open circuit between pins A/L, M, N and P ASM 341303.
       1 If the pin programming is incorrect:
  • repair the SDI pin programming of the ADM (19FP1)
  • connect the electrical connector of the ADM (19FP1).
       2 If the pin programming is correct:
         a If the red SPD and ALT flags are shown on the F/O PFD:
  • replace the ADM that you installed in the position of the ADM (19FP6).
         b If the red SPD and ALT flags are shown on the CAPT PFD:
  • disconnect the electrical connector of the ADM (19FP4).
  • make sure that there is continuity between pins A/J, K, N and P and that there is an open circuit between pins A/L and M ASM 341303.
    . If the pin programming is incorrect:
    repair the SDI pin programming of the ADM (19FP4)
    connect the electrical connector of the ADM (19FP4).
    . If the pin programming is correct:
    swap the ADM-L STATIC PRESSURE [19FP5] and the ADM (19FP7) AMM 34-11-17-000-001 and AMM 34-11-17-400-001.
    * If the red SPD and ALT flags are shown on the F/O PFD:
    replace the ADM that you installed in the position of the ADM (19FP7).
    * If the red SPD and ALT flags are shown on the CAPT PFD:
    disconnect the electrical connector of the ADM (19FP5).
    make sure that there is continuity between pins A/J, K, M and P and that there is an open circuit between pins A/L and N ASM 341303.
    ** If the pin programming is incorrect:
    repair the SDI pin programming of the ADM (19FP5).
5. Close-up
Subtask 34-13-81-860-051-A
A. Do the ADIRS stop procedure AMM 34-10-00-860-005.
[Rev.8 from Aug 2018] 2026.04.04 04:32:35 UTC
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