Commonwealth legislation

AD/P166/27 - Magnetic Compass Installation - Modification

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This directive requires Piaggio P.166 operators to test compass deviation against ANO 108.2.7 and, where electrical interference causes excessive deviation, immediately modify wiring to reduce interference and relocate the magnetic compass from the windshield frame to the glare shield. Owners/operators bear the cost and downtime; maintenance and avionics providers will carry out the technical work and verification.

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AD/P166/27 - Magnetic Compass Installation - Modification

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Piaggio P166 Series Aeroplanes

AD/P166/27 Magnetic Compass Installation - Modification 2/64

Applicability: All P166 series in which the maximum compass deviation and/or change in deviation due to electrical interference exceeds the limits prescribed in ANO 108.2.7.

Requirement: 1. Modify the wiring to the pitot heaters, compass lighting and radio system if necessary, to reduce the interference to acceptable limits.

Remove the compass from the windshield frame and relocate it on the flare shield. Compliance: Forthwith.

Source text

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