Commonwealth legislation

AD/INST/18 - Collins PN-101 Pictorial Navigation System Slaving Accessory 328A-3G - 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This Act has been repealed and is no longer in force. It is retained for historical reference.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 is a safety directive (an Airworthiness Directive) issued by the Civil Aviation Safety Authority.

What it does It orders owners or operators of aircraft fitted with a specific navigation instrument—the Collins PN-101 Pictorial Navigation System Slaving Accessory (model 328A-3G with serial numbers 1500 through 4034)—to carry out a mandatory modification to that device.

What you must do You must perform the modification exactly as described in Collins Service Bulletin No. 14 and complete it before 28 February 1976.

Why it matters This ensures the gyroscopic slaving accessory (which keeps the aircraft's directional gyro aligned with magnetic north) functions safely. Operating an aircraft without this modification violates civil aviation safety regulations and invalidates the aircraft's airworthiness certificate.

Who is affected Anyone responsible for an aircraft carrying the specified slaving accessory, identified by serial numbers 1500 to 4034.

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AD/INST/18 - Collins PN-101 Pictorial Navigation System Slaving Accessory 328A-3G - 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/18 Collins PN-101 Pictorial Navigation System

Slaving Accessory 328A-3G - Modification

Applicability: Slaving accessory type 328A3G with S/Nos. 1500 to 4034. Document: Collins SB No. 14.

Compliance: Before 28 February 1976.

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Source text

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