AD/AC-112/9 - Wing Structure - Rib - Inspection

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, serve to regulate and ensure safety within the civil aviation sector. One particular legislative instrument, F2006B02193, pertains to the 1998 Regulations, specifically addressing the issuance of airworthiness directives. This instrument was introduced to address the need for consistent and stringent safety standards for civil aircraft. The policy objective behind these regulations is to mitigate risks associated with aircraft operation by mandating regular inspections and maintenance actions, as specified in the directives. This ensures that aircraft, such as the Gulfstream (Rockwell) 112 Series Aeroplanes, meet the necessary safety standards to protect passengers, crew, and the general public. The Civil Aviation Safety Authority is responsible for issuing these directives, which include detailed compliance requirements, such as the mandated inspections for the wing structure of the specified aircraft model.

Scope and Application

The Civil Aviation Regulations 1998, specifically PART 39 - 105, applies to all Gulfstream (Rockwell) 112 Series Aeroplanes with serial numbers (S/Nos.) ranging from 3 to 470. This legislation mandates that the wing structure ribs of these aeroplanes undergo an inspection within 100 hours of time in service following 30 September 1978, and subsequently at intervals not exceeding 100 hours’ time in service until the modifications specified in Part II of Rockwell International Service Bulletin SB-112-59 are implemented. The scope of this regulation is geographically confined to the Commonwealth of Australia, overseen by the Civil Aviation Safety Authority (CASA). While the legislation provides clear guidelines on the inspection intervals and compliance requirements, it does not specify any exclusions, exemptions, or thresholds beyond the outlined serial number range. The application of this directive is further extended or potentially restricted by any subordinate instruments issued by CASA.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, detail the requirements for ensuring the airworthiness of certain aircraft, including the Gulfstream (Rockwell) 112 Series Aeroplanes. Section 39-105 pertains to the Airworthiness Directives issued for these aircraft, with AD/AC-112/9 focusing on the wing structure rib inspection (paragraph 8/78). This directive applies to all model 112 aircraft with serial numbers (S/Nos.) ranging from 3 to 470. The directive mandates that an initial inspection of the wing structure ribs must be conducted within 100 hours of time in service after 30 September 1978, and subsequent inspections must occur at intervals not exceeding 100 hours of time in service until the aircraft is modified according to Part II of Rockwell International Service Bulletin No. SB-112-59. The obligations under this directive include ensuring that the specified inspections are conducted diligently by qualified personnel. Operators of the affected Gulfstream 112 Series Aeroplanes must maintain meticulous records of each inspection, ensuring that all findings are addressed in accordance with the service bulletin provided by Rockwell International. Compliance with these directives is crucial for maintaining the airworthiness of the aircraft, which in turn ensures the safety of all passengers and crew. Failure to comply with the requirements set out in AD/AC-112/9 may result in significant consequences. The Civil Aviation Safety Authority (CASA) has the authority to take enforcement actions against operators who do not adhere to the inspection intervals and procedures outlined in the directive. Potential penalties for non-compliance could include fines, operational restrictions, or even the grounding of the aircraft in question. The specific penalties are not detailed in the provided text, but they are intended to enforce strict adherence to safety standards to prevent any compromise in the safety of air travel.