/

/

Where to start with an Australian legal problem: plain-English guides, with the legislation and case law behind them.

Platform

Legislation
Cases
Guides
Find a lawyer
Absurdities
Ask Zoe
Graph
Recently analysed

Free tools

Bond claim checker
Barking dog and noise diary
Support at Home statement check
All tools

Lawyers: our picks

Lawyers in Sydney
Lawyers in Melbourne
Lawyers in Brisbane
Lawyers in Perth
Family lawyers
Employment lawyers
Criminal lawyers
Wills and estates lawyers
Find a lawyer

Company

Pricing
API
Privacy
Terms
Support
X
LinkedIn
Instagram

Jurisdictions

Commonwealth
New South Wales
Queensland
Victoria
Western Australia
South Australia
Tasmania
Australian Capital Territory
Northern Territory

© 2026 Zoe. All rights reserved.

Zoe is a legal information platform. Always consult the Federal Register of Legislation for authoritative text.

AD/PA-28/7 Amdt 1 - Magneto Radio Interference Filters - Modification | Zoe

Legislation Cases Guides Find a lawyer Absurdities Ask Zoe Graph Pricing

Home/Legislation/AD/PA-28/7 Amdt 1 - Magneto Radio Interference Filters - Modification

Commonwealth legislation

AD/PA-28/7 Amdt 1 - Magneto Radio Interference Filters - 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This Act has been repealed and is no longer in force. It is retained for historical reference.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 mandatory Airworthiness Directive from CASA requires owners/operators of specific early-model Piper PA‑28 Cherokees (serials in the 28‑1 to 28‑24999 range) to fit insulating boots over the terminals of magneto radio‑interference filters. The boots prevent electrical shorting or corrosion that could compromise radio communications or the ignition system; compliance was required before 23 December 1969.

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/PA-28/7 Amdt 1 - Magneto Radio Interference Filters - Modification.

1

Section 1AD/PA-28/7 Amdt 1 - Magneto Radio Interference Filters - Modification

1

AD/PA-28/7 Amdt 1 - Magneto Radio Interference Filters - Modification

meta-content-style-type: text/css meta-content-type: application/xhtml+xml; charset=utf-8 meta-generator: Aspose.Words for .NET 22.10.0

?xml version="1.0" encoding="utf-8" standalone="no"?>

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Piper PA-28 Series Aeroplanes

AD/PA-28/7

Amdt 1

Magneto Radio Interference Filters - Modification 12/69

Applicability: Model PA-28-140 with S/Nos. 28-20002 to 28-24999. Model PA-28-150 with S/Nos. 28-1 to 28-4327. Model PA-28-160 with S/Nos. 28-4328 to 28-4377. Model PA-28-

235 with S/Nos. 28-10003 to 28-10719.

Requirement: Install insulating boots on the terminals of magneto switch filters P/N 460634. Compliance: Before 23 December 1969.

Note: Aircraft already modified in accordance with the earlier issue of this requirement, need no further action.

Source text

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

meta-content-style-type: text/css meta-content-type: application/xhtml+xml; charset=utf-8 meta-generator: Aspose.Words for .NET 22.10.0

?xml version="1.0" encoding="utf-8" standalone="no"?>

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Piper PA-28 Series Aeroplanes

AD/PA-28/7

Amdt 1

Magneto Radio Interference Filters - Modification 12/69

Applicability: Model PA-28-140 with S/Nos. 28-20002 to 28-24999. Model PA-28-150 with S/Nos. 28-1 to 28-4327. Model PA-28-160 with S/Nos. 28-4328 to 28-4377. Model PA-28-

235 with S/Nos. 28-10003 to 28-10719.

Requirement: Install insulating boots on the terminals of magneto switch filters P/N 460634. Compliance: Before 23 December 1969.

Note: Aircraft already modified in accordance with the earlier issue of this requirement, need no further action.