AD/CESSNA 206/26 - Ammeter Type and Position

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Legislation au F2006B05230 Not in force Legislative Instrument

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Cessna 206 Series Aeroplanes

 

AD/CESSNA 206/26 Ammeter Type and Position 9/78

Applicability: All models.

 

Requirement: 1. Inspect aircraft to ascertain if the ammeter has been modified in accordance with Rex Drawing RA-A-1109 or if a centre zero ammeter (charge/discharge type) is connected in the alternator line.

 

2.    Reconnect centre zero ammeter (charge/discharge type) into the battery line in accordance with original Cessna wiring diagrams.

 

Note: This requirement can be quickly checked by switching on the battery master switch (alternator not running) and a load such as a landing light switch and noting the following:

 

  1. if ammeter reads below zero in the discharge sector then it is connected in the battery line.

 

b.    if the ammeter still reads zero when a load is applied it is quite possibly connected in the alternator line and needs to be reconnected into the battery line.

 

Compliance: Within the next 100 hours time in service after 30 September 1978.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, specifically under PART 39 - 105, address the safety of aircraft through the issuance of airworthiness directives by the Civil Aviation Safety Authority. The directive AD/CESSNA 206/26 pertains to the Cessna 206 Series Aeroplanes and focuses on ensuring that the ammeter type and its position are correctly configured. This directive was enacted to rectify any issues that could potentially arise from improper ammeter placement, which could lead to inaccurate readings and subsequent safety risks. The objective is to mandate the inspection and correction of ammeter connections to ensure they align with original Cessna wiring diagrams, thus maintaining the integrity of the aircraft's electrical system and enhancing overall flight safety. The directive requires compliance within 100 hours time in service following 30 September 1978, ensuring timely adherence to the safety standards set forth by the Australian government.

Scope and Application

The Civil Aviation Safety Authority (CASA) regulations outlined in the Civil Aviation Regulations 1998, specifically under PART 39 - 105, apply to all models of the Cessna 206 Series aeroplanes. This regulation mandates that all operators of these aircraft must inspect the ammeter to ensure it has been modified in accordance with Rex Drawing RA-A-1109 or that a centre zero ammeter (charge/discharge type) is connected in the alternator line. If the ammeter has not been correctly positioned, operators must reconnect it into the battery line in accordance with the original Cessna wiring diagrams. This directive applies to all Cessna 206 Series aeroplanes across Australia, ensuring that the safety standards mandated by CASA are uniformly observed. Compliance with these directives must be achieved within the next 100 hours of time in service following 30 September 1978.

Key Provisions

The Civil Aviation Regulations 1998, specifically within Part 39 - 105, establish the requirements for maintaining the airworthiness of aircraft, such as the Cessna 206 series aeroplanes. The applicable Airworthiness Directive AD/CESSNA 206/26 mandates that all models of the Cessna 206 series must undergo an inspection to determine whether the ammeter has been modified in accordance with Rex Drawing RA-A-1109 or if a centre zero ammeter (charge/discharge type) is connected in the alternator line (Section 1). Additionally, if the centre zero ammeter is found to be connected in the alternator line, it must be reconnected into the battery line, following the original Cessna wiring diagrams (Section 2). To check the position of the ammeter, operators can switch on the battery master switch (with the alternator not running) and apply a load such as a landing light switch, observing whether the ammeter reads below zero in the discharge sector or remains at zero when a load is applied. The obligations imposed by this directive require operators of Cessna 206 series aircraft to ensure that the specified inspections and modifications are carried out within 100 hours of time in service after 30 September 1978. This involves verifying the configuration of the ammeter and making necessary adjustments to ensure compliance with the original Cessna wiring diagrams. Operators must maintain thorough records of the inspections and any modifications made to the aircraft to demonstrate adherence to these regulations. Failure to comply with the requirements outlined in AD/CESSNA 206/26 may result in significant legal and safety implications. The Civil Aviation Safety Authority has the authority to enforce penalties for non-compliance. Breaches of these regulations may lead to enforcement actions, including fines or other civil penalties as prescribed by the Civil Aviation Act 1988. Additionally, continued operation of an aircraft that does not comply with the airworthiness directives could pose serious safety risks, potentially leading to criminal charges if such operation results in harm or injury. The specific penalties for non-compliance are determined by the severity of the breach and the potential risks associated with the non-compliance.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.