Standby Altitude Information no Accurate

TASK 34-21-00-810-803-A
Standby Altitude Information no Accurate

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 34-21-00-720-002	Functional Test of the Standby Altimeter
AMM 34-21-22-000-001	Removal of the Standby Altimeter
AMM 34-21-22-400-001	Installation of the Standby Altimeter

3. Fault Confirmation
Subtask 34-21-00-720-052-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the functional test of the standby altimeter AMM 34-21-00-720-002.

4. Fault Isolation
Subtask 34-21-00-810-052-A ** ON A/C NOT FOR ALL

A. If the standby altimeter shows out of tolerance values:

(1) If the fault continues:

Subtask 34-21-00-720-053-A ** ON A/C NOT FOR ALL

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:32:55 UTC