Commonwealth legislation

AD/RAD/4 - Bendix D.F. Receiver Mechanical Filter Circuit - 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This Act has been repealed and is no longer in force. It is retained for historical reference.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 safety rule bans installing Bendix DFA-70 radio direction‑finding receivers that use the mechanical filter FLA‑70A‑3 unless the filter circuit is modified per Bendix Service Bulletin M‑249 (or Airworthiness Notice 107.9.6.2.2).

It affects aircraft operators and maintenance personnel who own or install these vintage receivers — compliance is mandatory because installing unmodified units would violate airworthiness regulations and risk navigation safety.

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AD/RAD/4 - Bendix D.F. Receiver Mechanical Filter Circuit - 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 Radio Communication and Navigation Equipment

AD/RAD/4 Bendix D.F. Receiver Mechanical NK

Filter Circuit - Modification

Applicability: All Bendix Automatic DF Receivers Type DFA-70 fitted with 1500 cps Mech. Filter Type FLA-70A-3.

Document: 1. Bendix Radio SB No. M-249 Issue 1; or 2. ANO 107.9.6.2.2.

Compliance: Before installation in an aircraft.

Source text

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