DOC AIRBUS | TSM A320FMetric Altitude Information not Accurate
TASK 34-21-00-810-804-A
Metric Altitude Information not Accurate
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-21-00-710-051-A ** ON A/C NOT FOR ALL
Subtask 34-21-00-810-053-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:32:55 UTC
Metric Altitude Information not Accurate
1. Possible Causes
- ALTIMETER-METRIC [15FN]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 34-10-00-170-003 | Draining and Flushing of Standby Pneumatic Circuits |
| AMM 34-21-25-000-001 | Removal of the Metric Altimeter |
| AMM 34-21-25-400-001 | Installation of the Metric Altimeter |
Subtask 34-21-00-710-051-A ** ON A/C NOT FOR ALL
A. Test
(1) Not applicable, the fault is evident.
4. Fault Isolation(1) Not applicable, the fault is evident.
Subtask 34-21-00-810-053-A ** ON A/C NOT FOR ALL
A. If the metric altimeter shows out of tolerance values:
Subtask 34-21-00-710-052-A ** ON A/C NOT FOR ALL - replace the ALTIMETER-METRIC [15FN] AMM 34-21-25-000-001 and AMM 34-21-25-400-001.
- drain and flush the standby static pressure line AMM 34-10-00-170-003.
B. Make sure that the metric altimeter information is correct.