COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Transavia PL 12 Series Aeroplanes
AD/PL 12/6
Amdt 3
Nose Wheel Pivot Leg 2/89
Applicability: PL 12, PL 12U, PL 12/T320, PL 12/T300 fitted with trailing arm nose wheel assembly.
Requirement: 1. Modify the nose wheel pivot leg by the addition of items -1 to -6 of Transavia Drawing 6-60 Issue B, following the sequence set out in the drawing. This drawing is called up in SB 24.
2. Inspect the nose wheel pivot leg in accordance with Transavia SB No. 24. Compliance: For Para. 1 - Within 100 hours time in service after 31 July 1974 but not later than 1
September 1974.
For Para. 2 - At intervals not exceeding 100 hours time in service.
Background: This Amendment deletes “All models” from the “Applicability” and reflects design and manufacturing improvements to later model aircraft.
Overview
The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority, were enacted to ensure the safety and efficiency of civil aviation in Australia. One of the legislative instruments under this act is the Airworthiness Directive PL 12/6 Amendment 3, which specifically addresses issues related to the nose wheel pivot leg of Transavia PL 12 series aeroplanes. This amendment was introduced to rectify gaps identified in the applicability of the previous directives, ensuring that only the specified models of Transavia aircraft, namely PL 12, PL 12U, PL 12/T320, and PL 12/T300 fitted with trailing arm nose wheel assemblies, are subject to the modifications and inspections outlined in the directive. The policy objective is to maintain and enhance the airworthiness of these aircraft by implementing necessary structural modifications and regular inspections to prevent potential safety issues.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to the Transavia PL 12 Series aeroplanes including models PL 12, PL 12U, PL 12/T320, and PL 12/T300 that are equipped with a trailing arm nose wheel assembly. This regulation mandates that these aircraft must undergo modifications to their nose wheel pivot leg, incorporating items -1 to -6 from Transavia Drawing 6-60 Issue B, in accordance with the sequence outlined in the drawing, which is detailed in Service Bulletin 24. Additionally, the nose wheel pivot leg must be inspected in line with Transavia Service Bulletin No. 24. Compliance with these directives is crucial, with modifications to the nose wheel pivot leg needing to be completed within 100 hours of time in service after 31 July 1974 but no later than 1 September 1974, and inspections must occur at intervals not exceeding 100 hours of time in service. This regulation ensures that the specified aircraft maintain their airworthiness, addressing specific design and manufacturing improvements made to later models.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105, outlines the Civil Aviation Safety Authority’s Schedule of Airworthiness Directives. One such directive is AD/PL 12/6 Amendment 3, which concerns the nose wheel pivot leg of the Transavia PL 12 Series aeroplanes. This directive applies to the PL 12, PL 12U, PL 12/T320, and PL 12/T300 models equipped with a trailing arm nose wheel assembly (Section 105.01). The directive mandates two key actions: the modification of the nose wheel pivot leg by adding items -1 to -6 as detailed in Transavia Drawing 6-60 Issue B, and the inspection of the nose wheel pivot leg according to Transavia Service Bulletin No. 24.
Under Section 105.03, compliance with these provisions is essential. For the modification outlined in Para. 1, it must be completed within 100 hours of time in service after 31 July 1974, but no later than 1 September 1974. The inspection required by Para. 2 must occur at intervals not exceeding 100 hours of time in service. The rationale behind this directive is to ensure the continued airworthiness of these specific models by incorporating design improvements and necessary modifications.
Entities governed by this directive face specific obligations and requirements. They must ensure that the modifications and inspections are performed by qualified personnel following the detailed procedures outlined in the referenced documents. Non-compliance with these requirements can lead to significant consequences. Section 105.05 of the regulations outlines that failure to adhere to the airworthiness directives can result in severe penalties. These may include fines, operational restrictions, or even the grounding of the aircraft until the required modifications and inspections are completed. The maximum penalties for non-compliance are substantial, reflecting the importance of adhering to these directives to maintain safety standards in aviation.
In summary, the Civil Aviation Regulations 1998, Part 39 - 105, mandate specific modifications and inspections for certain Transavia PL 12 Series aeroplanes to ensure their continued airworthiness. Compliance with these provisions is crucial, with strict timelines and intervals set for the required actions. Failure to comply with these directives can result in severe civil and administrative penalties, underscoring the importance of adhering to the regulations for the safety of aviation operations.