AD/GROB 115/11 - Aileron Control Rod

Overview

The Civil Aviation Regulations 1998, amended through F2006B10318, specifically address the issue of potential aileron control rod failure in Grob G115 Series Aeroplanes. This legislative instrument was enacted to ensure the continued airworthiness of these aircraft by mandating the replacement of aileron control rods to prevent distortion and ensure proper aircraft control. The directive applies to all models G115 and G115A, across all serial numbers, and requires the replacement of aileron control rods no. 1 (part numbers 115-4400/4401) with modified versions (part numbers 115-4410/4411) in accordance with Grob Service Bulletin SB1078-14. The policy objective is to mitigate the risk of control failure by ensuring that any existing rods are rendered unserviceable or destroyed and that the replacement is completed within 20 hours of the aircraft entering service after 18 June 1998. The directive is effective from 18 June 1998, and compliance is enforced by the Civil Aviation Safety Authority.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, under the authority of the Civil Aviation Safety Authority, pertains to the maintenance and safety standards for the Grob G115 series aeroplanes. This regulation applies to all models G115 and G115A, regardless of their serial numbers, mandating the replacement of aileron control rods no. 1 with modified versions to prevent potential distortions caused by high control forces. The directive is effective from 18 June 1998 and requires compliance within 20 hours of time in service after this date. The regulation extends its jurisdictional reach across the Commonwealth of Australia, overseen by the Civil Aviation Safety Authority, ensuring adherence to airworthiness standards. Notably, any aileron control rods removed from aircraft or stored must be rendered unserviceable or destroyed to maintain safety standards. This directive is enforceable through the subordinate instruments and service bulletins provided, such as Grob Service Bulletin (SB) 1078-14, and references LBA AD 90-229 for additional context.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, under the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, detail the requirements for maintaining the airworthiness of the Grob G115 Series Aeroplanes. Section AD/GROB 115/11 pertains to the aileron control rod and mandates the replacement of the existing aileron control rods no. 1 (part number 115-4400/4401) with modified aileron control rods no. 1 (part number 115-4410/4411), as specified in Grob Service Bulletin 1078-14. This directive applies to all models G115 and G115A, regardless of serial number. Aircraft operators and owners must ensure that the specified replacement is carried out within 20 hours of the aircraft being in service after 18 June 1998, the date the directive became effective. Additionally, any aileron control rods (part number 115-4400/4401) removed from the aircraft or in storage should be rendered unserviceable or destroyed to prevent accidental use. This obligation is critical to maintaining the safety standards set forth by the CASA and is referenced in LBA AD 90-229. Failure to comply with these provisions can lead to serious consequences. The Civil Aviation Regulations 1998 impose strict obligations on the parties involved, and non-compliance can result in enforcement actions. In the event of a breach, the CASA may take legal action against the offending party, leading to civil or criminal penalties. While the exact penalties are not specified in the provided text, it is clear that adherence to these directives is mandatory, and any deviation could result in significant repercussions.