COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
PZL 104 (Wilga) Series Aeroplanes
AD/WILGA/1
Amdt 3
Applicability: All models.
Airworthiness Limitation 10/97
Requirement: 1. For aeroplanes up to Series 21, except aircraft with manufacturer number CF21950952, CF21950954, CF21950959, CF21950960 and CF21950961: Retire
the fuselage spar framework CE 111500 (wing carry through spar) from service.
2. Retire the airframe from service.
Note: PZL Service Bulletin No 10496025 refers.
Compliance: 1. For requirement 1, before 2600 hours time in service.
2. For requirement 2, before 5200 hours time in service. This amendment is effective from 11 September 1997.
Background: This directive specifies the airworthiness limitations of the PZL-104 Wilga 80 airframe. This amendment reflects the latest issue of the applicable mandatory service bulletin. Extension of the service life from 2600 hours to 5200 hours for early models no longer requires replacement of the lower main wing ferrule. For later models, no items need be replaced to achieve the service life of 5200 hours.
Amendment 1 of this AD extended the fatigue life limitation from 2400 hours to 5200 hours.
Amendment 2 clarified the actions required to extend the airframe fatigue life limitation to 5200 hours.
Amendment 2 of this Airworthiness Directive became effective on 22 June 1995.
Amendment 1 of this Airworthiness Directive became effective on 27 December 1990.
The original issue of this Airworthiness Directive became effective on 1 November 1990.
Overview
The Civil Aviation Regulations 1998, specifically Part 39 - 105, incorporates the Airworthiness Directives (AD) issued by the Civil Aviation Safety Authority (CASA) to ensure the safety of aircraft operations within Australia. One such directive, AD/WILGA/1 Amendment 3, pertains to the PZL-104 Wilga Series Aeroplanes and was enacted to address the airworthiness limitations of these aircraft models. The directive was introduced to extend the service life of certain airframe components, thereby enhancing the safety and reliability of the aircraft in operation. This amendment was effective from 11 September 1997, reflecting the latest safety standards and manufacturer recommendations.
The objective of AD/WILGA/1 Amendment 3 is to mandate the retirement of specific fuselage components for certain PZL-104 Wilga Series Aeroplanes before reaching specified flight hour thresholds, thereby preventing potential structural failures and ensuring continued airworthiness. This legislative instrument, as part of the Civil Aviation Regulations 1998, is enacted by the Australian Government to maintain high safety standards in the civil aviation sector.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the airworthiness directives issued by the Civil Aviation Safety Authority. The regulations apply to all models of PZL 104 (Wilga) series aeroplanes, ensuring compliance with airworthiness standards. This legislative instrument targets aircraft manufacturers, operators, and owners within the Commonwealth of Australia, aiming to maintain safety standards in civil aviation. The directive applies to all PZL 104 (Wilga) series aeroplanes, except for those with specific manufacturer numbers excluded from certain requirements. Compliance with these directives is mandatory for all affected aircraft to ensure continued airworthiness and adherence to safety standards. The regulations are enforced by the Civil Aviation Safety Authority and any non-compliance can result in penalties or grounding of the aircraft. The scope of the directive includes specific technical requirements such as the retirement of the fuselage spar framework and the airframe from service after a certain number of hours in operation, with amendments to extend the service life of certain components.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105, addresses airworthiness directives for the PZL-104 Wilga series aeroplanes. The key operative sections, particularly AD/WILGA/1 Amendment 3, outline the requirements for maintaining the airworthiness of these aircraft. Section 1 mandates that for aeroplanes up to Series 21, excluding specific manufacturer numbers, the fuselage spar framework CE 111500 must be retired from service before 2600 hours of time in service. Section 2 requires the entire airframe to be retired from service before reaching 5200 hours of time in service. Compliance with these requirements is crucial to ensuring the safety and continued airworthiness of the aircraft.
The obligations imposed by the Act on the parties or entities it governs are straightforward. Operators of PZL-104 Wilga aeroplanes must adhere to the specified service life limitations to ensure the safety and integrity of the aircraft. This includes conducting regular inspections and retirements of specified components and the entire airframe in accordance with the mandated hours of service. Compliance involves diligent record-keeping and adherence to the Civil Aviation Safety Authority's directives and service bulletins, ensuring that all modifications and retirements are carried out in a timely and appropriate manner.
Failure to comply with the provisions of the AD/WILGA/1 Amendment 3 can result in severe consequences. Operational breaches of these airworthiness directives can lead to significant civil and criminal penalties. The maximum penalties for non-compliance may include fines and imprisonment, reflecting the critical nature of adhering to these safety standards. Ensuring compliance is not only a regulatory requirement but also a fundamental aspect of maintaining safety and operational integrity within the aviation sector.