34-21 Altitude and Airspeed Standby Data

34-21-01 Standby ALT Indicator
34-21-02 Bugs on the Standby ALT Indicator
34-21-03 Standby IAS Indicator
34-21-04 Bugs on the Standby IAS Indicator
34-21-05 Standby ALT Metric Indicator (If Installed)