Difference Between Pt3 and Ps3 Exceed the Treshold Value

TASK 34-11-00-810-911-A
Difference Between Pt3 and Ps3 Exceed the Treshold Value

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 34-10-00-170-003	Draining and Flushing of Standby Pneumatic Circuits
AMM 34-11-15-000-001	Removal of the Pitot Probe
AMM 34-11-15-200-001	Inspection/Check of the Pitot Probe
AMM 34-11-15-400-001	Installation of the Pitot Probe
AMM 34-11-16-200-001	Inspection of the Static Port
AMM 34-11-17-000-001	Removal of the Air Data Module
AMM 34-11-17-400-001	Installation of the Air Data Module
AMM 34-13-00-740-003	SYSTEM TEST of the ADR

3. Fault Confirmation
Subtask 34-11-00-740-153-A ** ON A/C NOT FOR ALL

A. Test
Do the system test of the ADR (system 3) AMM 34-13-00-740-003.

4. Fault Isolation
Subtask 34-11-00-810-254-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message ADM3 (19FP3)/ ADM8 (19FP8):

(1) If the fault continues:

Do the draining and flushing of standby pneumatic circuits AMM 34-10-00-170-003.

(a) If the fault continues:

1 If the test is not OK:

2 If the test is OK:

a If the fault continues:

Replace the ADM-STBY STATIC PRESSURE [19FP8] AMM 34-11-17-000-001 and AMM 34-11-17-400-001.

Subtask 34-11-00-740-154-A ** ON A/C NOT FOR ALL

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:32:19 UTC