COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Piper PA-22 (Tri-Pacer and Colt) Series Aeroplanes
AD/PA-22/9
Amdt 5
Wing Lift Strut Forks 5/95
Applicability: All Piper PA-22 models.
Requirement: 1. Install “No Step” Decal on starboard lift strut.
2. Retire lift strut forks from service.
Installation of sealed lift struts in accordance with Piper mandatory Service Bulletin 528D cancels the retirement Requirement of this Directive (AD/PA-22/33 refers).
For those models which have a fairing over the front and rear strut lower ends, a single placard on the starboard fairing will suffice.
Note: FAA AD 93-10-06 and Piper Service Bulletin 157D refer.
Compliance: 1. Install placard before 50 hours time in service after 30 September 1986.
2. Retire lift strut forks before the accumulation of 1000 hours time in service. This amendment is effective from 27 April 1995.
Background: This Amendment specifies the individual actions to be taken and provides for a terminating modification. The continuing airworthiness of these components is managed on a retirement life basis. It is no longer required to perform a magnetic particle inspection at the half life (500 hours).
Overview
The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority, address the need for maintaining the airworthiness of aircraft, particularly focusing on safety directives for specific aircraft models. A notable amendment under this legislation is AD/PA-22/9 Amendment 5, which targets the Piper PA-22 (Tri-Pacer and Colt) series aeroplanes. This directive was introduced to manage the safety risks associated with the wing lift strut forks, a critical component of the aircraft's structure. The policy objective is to ensure the ongoing safety and compliance of these aircraft through specific maintenance actions. This includes the installation of a "No Step" decal on the starboard lift strut and the eventual retirement of the lift strut forks from service after a certain period of use, unless they are replaced with sealed lift struts in accordance with Piper's mandatory service bulletins. The amendment is effective from 27 April 1995, and it simplifies compliance by eliminating the requirement for a magnetic particle inspection at the half-life of the lift strut forks.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to all Piper PA-22 models, encompassing both the Tri-Pacer and Colt series aeroplanes. This legislation mandates certain safety directives regarding the airworthiness of these aircraft, particularly focusing on the wing lift strut forks. The requirement includes the installation of a "No Step" decal on the starboard lift strut and the retirement of lift strut forks from service after accumulating 1000 hours of time in service. The installation of sealed lift struts as per Piper's mandatory Service Bulletin 528D negates the requirement to retire the lift strut forks. Compliance involves installing the placard before 50 hours of time in service after 30 September 1986, and retiring the lift strut forks before reaching 1000 hours of time in service. This amendment was made effective from 27 April 1995, superseding previous requirements such as the need for magnetic particle inspections at the half-life (500 hours). This legislation ensures the continued safety and airworthiness of Piper PA-22 series aeroplanes by enforcing specific modifications and inspections.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105 and Schedule of Airworthiness Directives, address the maintenance and safety requirements for Piper PA-22 (Tri-Pacer and Colt) series aeroplanes. In the case of Amendment 5 concerning wing lift strut forks, section 5/95 outlines the key operative sections. The amendment requires the installation of a "No Step" decal on the starboard lift strut (section 1) and the retirement of lift strut forks from service (section 2). For models with fairings over the front and rear strut lower ends, a placard on the starboard fairing is sufficient. This amendment cancels the previous requirement of a magnetic particle inspection at the half-life (500 hours). The compliance requirements mandate the installation of the placard within 50 hours of time in service after 30 September 1986 and the retirement of lift strut forks before accumulating 1000 hours of time in service. This amendment has been effective since 27 April 1995.
The obligations imposed by this Airworthiness Directive are specific to the maintenance and safety of Piper PA-22 aeroplanes. Operators and owners must adhere to the installation of the "No Step" decal and placard as specified. The directive further requires the retirement of lift strut forks to ensure ongoing airworthiness. Additionally, the installation of sealed lift struts in accordance with Piper mandatory Service Bulletin 528D cancels the retirement requirement of this directive. These obligations ensure that the aircraft meet the safety standards set by the Civil Aviation Safety Authority (CASA) and the Federal Aviation Administration (FAA).
Failure to comply with the requirements of the Airworthiness Directive may result in various consequences. The regulations outline that non-compliance with the specified maintenance and safety directives can lead to serious repercussions. The primary consequence is the potential for the aircraft to be deemed unairworthy, which can result in grounding and refusal of flight operations. Additionally, operators may face legal penalties and enforcement actions from CASA. While the specific penalties are not detailed in the text, they may include fines and other administrative sanctions. It is crucial for operators to adhere to these directives to maintain compliance and ensure the safety and airworthiness of the aircraft.