Commonwealth legislation

AD/INST/1 - Gyro Horizon Indicators Power Failure Warning Flag - Modification

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This CASA Airworthiness Directive mandates a safety modification to Sperry Model H‑3 Gyro Horizon Indicators so they display a power‑failure warning flag. Anyone installing this specific instrument must have the modification done before installation, ensuring pilots aren’t misled by a powerless or frozen attitude indication.

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AD/INST/1 - Gyro Horizon Indicators Power Failure Warning Flag - Modification

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Instruments and Automatic Pilots

AD/INST/1 Gyro Horizon Indicators Power Failure NK

Warning Flag - Modification

Applicability: Sperry Model H-3 Gyro Horizon. Document: 1. Sperry FSB H.3 No. 18; or

ANO 107.3.9.3.1.

Compliance: Before installation in an aircraft.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.