AD/BEECH 90/26 - Outer Wing Electrical Wiring - Inspection

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Legislation au F2006B04217 Not in force Legislative Instrument

Legislation content

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Beechcraft 90 and 65-90 (King Air) Series Aeroplanes

 

AD/BEECH 90/26 Outer Wing Electrical Wiring - Inspection 1/72

Applicability: All models.

 

Requirement: Inspect the electrical wiring aft of the rear auxiliary fuel tank(s) in each outer wing for chafing, especially where it passes through the ribs at wing station 155.78 to 270.

 

Replace any missing grommets or other insulation material missing from clips supporting the electrical wiring loom in each outer wing.

 

Compliance: Within 30 hours time in service after 21 December 1971.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998 (Cth), specifically PART 39 - 105, addresses the maintenance and safety standards for aircraft within Australian airspace. The legislative instrument F2006B04217, enacted by the Civil Aviation Safety Authority (CASA), introduces an Airworthiness Directive (AD) aimed at ensuring the continued safety of the Beechcraft 90 and 65-90 (King Air) series aeroplanes. This particular AD, AD/BEECH 90/26, focuses on the outer wing electrical wiring, necessitating inspections and repairs to prevent potential chafing and electrical faults. The policy objective of this directive is to enhance flight safety by mandating specific maintenance actions, thereby mitigating the risks associated with electrical wiring failures in these aircraft models.

Scope and Application

The Civil Aviation Safety Authority (CASA) regulations, specifically AD/BEECH 90/26 within the Civil Aviation Regulations 1998, mandate an inspection of the outer wing electrical wiring for Beechcraft 90 and 65-90 (King Air) series aeroplanes. This directive applies universally to all models of the specified aircraft, necessitating an inspection of the electrical wiring aft of the rear auxiliary fuel tank(s) in each outer wing for signs of chafing, with a particular focus on the area passing through the ribs at wing stations 155.78 to 270. Additionally, the directive requires the replacement of any missing grommets or other insulation materials missing from clips supporting the electrical wiring loom in each outer wing. Compliance with these requirements must be achieved within 30 hours’ time in service after 21 December 1971. The regulations are enforced by CASA and pertain to all operators of the specified aircraft within the Australian Commonwealth. This directive does not explicitly mention any exclusions, exemptions, or thresholds, implying that all applicable aircraft must adhere to the outlined inspection and compliance requirements.

Key Provisions

The primary section in focus is AD/BEECH 90/26 (1), which mandates specific inspections and actions concerning the outer wing electrical wiring of Beechcraft 90 and 65-90 (King Air) Series Aeroplanes. Essentially, this section requires an inspection of the electrical wiring aft of the rear auxiliary fuel tank(s) in each outer wing, particularly focusing on any chafing that may occur where the wiring passes through the ribs at specified wing stations. Additionally, it requires any missing grommets or other insulation material supporting the electrical wiring loom in each outer wing to be replaced. The compliance period for these inspections and repairs is within 30 hours of time in service following 21 December 1971. The Civil Aviation Regulations 1998, under this directive, impose clear obligations on the operators and owners of the Beechcraft 90 and 65-90 (King Air) Series Aeroplanes. They are required to ensure that the inspections and any necessary repairs are performed meticulously and within the specified timeframe. This includes conducting a thorough visual inspection of the electrical wiring for any signs of wear or damage, specifically chafing, and ensuring that all insulation materials are intact and in place. Failure to adhere to these requirements could result in the aircraft being deemed unairworthy, which could have serious implications for flight operations and safety. The regulations also stipulate serious consequences for non-compliance with these airworthiness directives. The Act provides for both civil and criminal penalties for those who fail to adhere to the requirements. Civil penalties may include fines and other monetary sanctions, while criminal penalties could involve imprisonment, reflecting the critical nature of maintaining airworthiness standards. The maximum penalties are not explicitly stated in the provided text, but it is clear that the authorities take compliance with airworthiness directives very seriously to ensure the safety of all air travel. In summary, the Civil Aviation Regulations 1998, specifically section AD/BEECH 90/26 (1), requires a detailed inspection and repair of the outer wing electrical wiring of Beechcraft 90 and 65-90 (King Air) Series Aeroplanes within a specific timeframe. Operators and owners must ensure compliance with these directives to avoid serious civil and criminal penalties, underscoring the importance of adhering to these safety regulations.

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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.