Advisory Circulars

Advisory Circulars (AC) give advice and guidance on how to meet the Civil Aviation Safety Regulations (CASR). Each AC explains certain rules or standards in more detail.

Search by keyword such as the title or number of an AC. You can also use the category or rule part filters to show AC related to a particular topic or Part of CASR.

Showing 76 - 90 of 194 results

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AC 1-04 - Registered operator responsibilities for continuing airworthiness

Updated:

This AC provides guidance for operators relating to their management of the continuing airworthiness, and maintenance,…

Advisory Circular Airworthiness Part 119 of CASR Part 121 of CASR Part 133 of CASR Part 135 of CASR Part 137 of CASR Part 138 of CASR Part 141 of CASR Part 142 of CASR Guidance materials Version
1.0
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AC 1-04 Registered operator responsibilities for continuing airworthiness (PDF, 326.02 KB)

AC 139.E-02 - Plume rise assessments

Updated:

Advisory Circular AC 139.E-02 provides guidance on plume rise assessments for vertical exhaust plumes. It applies to…

Advisory Circular Aerodromes Part 139 of CASR Guidance materials Version
1.0
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AC 139.E-02 Plume rise assessments (PDF, 614.75 KB)

AC 21-99 - Aircraft wiring and bonding

Updated:

Advisory Circular AC 21-99 provides guidance for the maintenance of aircraft electrical systems and bonding of…

Advisory Circular Airworthiness Part 21 of CASR Part 21 of CASR Guidance materials Version
2.1
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AC 21-99 Aircraft wiring and bonding (PDF, 18.88 MB)

AC 21-02 - Standard certificates of airworthiness

Updated:

Advisory circular AC 21-02 provides guidance and information to the public, Civil Aviation Safety Authority (CASA)…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version
2.2
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AC 21-02 Standard certificates of airworthiness (PDF, 509.71 KB)

AC 21-05 - Certification of limited category aircraft

Updated:

Advisory Circular AC 21-05 explains the process for certifying a limited category aircraft under Subpart 21.H of the…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version
2.2
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AC 21-05 Certification of limited category aircraft (PDF, 415.76 KB)

AC 21-25 - Limited category aircraft - permit index

Updated:

Advisory Circular AC 21-25 provides information on the process we use when assigning a permit index number to an…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version
5.1
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AC 21-25 Limited category aircraft - permit index (PDF, 489.26 KB)

AC 21-38 - Aircraft electrical load analysis and power source capacity

Updated:

Advisory Circular AC 21-38 provides guidance for the preparation or alteration of an electrical load analysis (ELA). It…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version
2.1
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AC 21-38 Aircraft electrical load analysis and power source capacity (PDF, 2.38 MB)

AC 35-01 - Wooden propellers

Updated:

Advisory Circular AC 35-01 provides guidance relating to the manufacture of fixed pitch wooden propellers.

Advisory Circular Airworthiness Part 35 of CASR Guidance materials Version
1.1
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AC 35-01 Wooden propellers (PDF, 517.83 KB)

AC 66-08 - Part 66 aircraft engineer licences privileges

Updated:

Advisory Circular AC 66-08 provides information and guidance to current and future holders of a Part 66 aircraft…

Advisory Circular Airworthiness Part 66 of CASR Guidance materials Version
1.3
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AC 66-08 Part 66 aircraft engineer licences privileges (PDF, 1.38 MB)

AC 145-04 - Control and delivery of training by a Part 145 approved maintenance organisation

Updated:

Advisory Circular AC 145-04 provides guidance and information to Part 145 approved maintenance organisations (AMOs) on…

Advisory Circular Airworthiness Version: 2.3
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AC 145-04 Control and delivery of training by a Part 145 approved maintenance organisation (PDF, 381.1 KB)

AC 20-06 - Defect reporting

Updated:

Advisory circular AC 20-06 provides guidance and information to people reporting defects to CASA in accordance with…

Advisory Circular Airworthiness Part 4B of CAR Guidance materials Version
1.1
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AC 20-06 Defect reporting (PDF, 374.43 KB)
Online version available at: https://www.casa.gov.au//search-centre/advisory-circulars
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