DOC AIRBUS | TSM A320FAPU Bleed Pressure - Bleed Pressure Fluctuation (APS 3200)
TASK 49-00-81-810-885-A
APU Bleed Pressure - Bleed Pressure Fluctuation (APS 3200)
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 49-00-81-710-220-A ** ON A/C NOT FOR ALL
Subtask 49-00-81-810-150-B ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:34:31 UTC
APU Bleed Pressure - Bleed Pressure Fluctuation (APS 3200)
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TSM TASK 49-00-00-810-937-A | No APU Bleed-Air Pressure, Low or Fluctuating APU Bleed-Air Pressure (with AIDS support) (APS 3200) |
| AMM 21-51-51-000-001 | Removal of the Pack Flow-Control Valve/ Pack Flow-Control Unit |
| AMM 21-51-51-400-001 | Installation of the Pack Flow-Control Valve/ Pack Flow-Control Unit |
| AMM 49-00-00-860-005 | APU Start by External Power |
Subtask 49-00-81-710-220-A ** ON A/C NOT FOR ALL
A. Test
(2) On the AIR COND section on the overhead panel 30VU, push the
4. Fault IsolationNOTE: The Fault can be spurious and is not necessarily reproductive on ground.
(1) Start and operate the APU AMM 49-00-00-860-005. (2) On the AIR COND section on the overhead panel 30VU, push the
- APU BLEED p/bsw to on;
- PACK 1 p/bsw to on (the OFF legend is off);
- PACK 2 p/bsw to on (the OFF legend is off);
Subtask 49-00-81-810-150-B ** ON A/C NOT FOR ALL
A. If the bleed indication on the ECAM APU page shows pressure fluctuation:
Subtask 49-00-81-710-221-A ** ON A/C NOT FOR ALL - Get the ECAM BLEED page and monitor the pack-flow indication needles.
- Replace the related FLOW CTL UNIT - PACK 2 [24HB] or the FLOW CTL UNIT - PACK 1 [23HB]
AMM 21-51-51-000-001 and
AMM 21-51-51-400-001.
- Do the trouble shooting of the APU bleed fluctuation (Ref. TSM TASK 49-00-00-810-937).
B. Do the test given in Para. 3.