Small Variation of the Bleed Pressure Indication

TASK 36-11-00-810-A33-A
Small Variation of the Bleed Pressure Indication

1. Possible Causes

2. Fault Confirmation
Subtask 36-11-00-710-490-A ** ON A/C NOT FOR ALL

A. Test
(1) Not applicable, it is not a fault.

NOTE: The PRV has normal fluctuations between 42 psi (2.90 bar) and 60 psi (4.14 bar).

NOTE: Automatic switching between the HPV and the IP check valve can cause fluctuations from 53 psi (3.65 bar) to 77 psi (5.31 bar).

NOTE: On the lower ECAM DU, on the BLEED page, changes of the engine bleed pressure between 36 psi (2.48 bar) and 50 psi (3.45 bar) are normal in descent at a constant engine power.

3. Fault Isolation
Subtask 36-11-00-810-485-A ** ON A/C NOT FOR ALL

A. No maintenance action is required.

[Rev.8 from Aug 2018] 2026.04.04 04:33:57 UTC