COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Short SD3-60 Series Aeroplanes
AD/SD3-60/23
Amdt 2
Rudder Gust Lock 8/88
Applicability: | For SB SD360-27-16: | All models S/Nos SH3601 to SH3715 as applicable, and |
| For SB SD360-27-21: | All models. |
Requirement: Action in accordance with: |
| Part 1: | Shorts SB SD360-27-16 and |
| Part 2: | Shorts SB SD360-27-21. |
Compliance: | Part 1: | Prior to 31 January 1988. |
| Part 2: | Prior to 30 September 1988. |
|
Background: Damage has occurred to the rudder control system due to wind gust and jet blast.
This prompted the issue of the original Requirement, ie Part 1. Since then there have been reports of unsolicited engagement of the rudder gust lock. Investigation indicates that these were caused by inaccurate adjustment of microswitch WM2.
Overview
The Civil Aviation Regulations 1998, specifically Part 39 - 105, include an Airworthiness Directive (AD) related to the SD3-60 series aeroplanes, addressing issues with the rudder gust lock. This legislation was introduced by the Commonwealth of Australia to address safety concerns arising from damage to the rudder control system due to wind gusts and jet blast, as well as unsolicited engagement of the rudder gust lock. The problem identified was the occurrence of damage to the rudder control system and unintended operation of the rudder gust lock, which prompted the creation of this directive to ensure compliance and safety within the specified parameters. The policy objective behind this AD is to mitigate risks associated with these specific safety issues, ensuring the continued airworthiness of the affected aircraft models.
The AD/SD3-60/23 Amendment 2, issued on 8 August 1988, applies to all models with serial numbers SH3601 to SH3715, and mandates compliance with Shorts Service Bulletins SD360-27-16 and SD360-27-21. This directive was enacted to respond to incidents where the rudder control system was compromised by wind gusts and jet blast, and subsequent investigations revealed that the unsolicited engagement of the rudder gust lock was caused by inaccurate adjustments of microswitch WM2. The directive outlines specific compliance dates, with Part 1 requiring action before 31 January 1988, and Part 2 necessitating compliance before 30 September 1988. This legislative instrument was developed and implemented by the relevant authorities within the Commonwealth of Australia to safeguard aviation safety.
Scope and Application
The Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998, specifically within Part 39 - 105, provides a framework governing the airworthiness directives (AD) for ensuring the safety of civil aviation operations in Australia. This legislative instrument, identified as F2006B06867, applies to all aircraft within the specified category, in this case, the Short SD3-60 Series Aeroplanes. The directive mandates that all models with serial numbers SH3601 to SH3715, as applicable, adhere to the safety bulletins SD360-27-16 and SD360-27-21, which pertain to the rudder control system. The regulation requires compliance prior to specific dates, 31 January 1988 for SB SD360-27-16 and 30 September 1988 for SB SD360-27-21, to address issues such as rudder control damage due to wind gust and jet blast, as well as instances of unintended engagement of the rudder gust lock caused by inaccurate microswitch adjustments. The geographic and jurisdictional reach of this legislation is national, encompassing all civil aviation activities within Australia, as mandated by CASA.
Key Provisions
The Civil Aviation Regulations 1998, specifically in Part 39 - 105 under the Civil Aviation Safety Authority Schedule of Airworthiness Directives, outlines requirements for the Short SD3-60 Series aeroplanes (Sections 1-2). This regulation addresses the rudder gust lock, focusing on models with serial numbers SH3601 to SH3715 as stipulated in AD/SD3-60/23 Amendment 2. The directive mandates action in accordance with Shorts Service Bulletins SD360-27-16 and SD360-27-21. Compliance must be achieved prior to specific dates: for SB SD360-27-16, before 31 January 1988, and for SB SD360-27-21, before 30 September 1988.
Entities governed by this Act, specifically those operating the Short SD3-60 Series aeroplanes, must ensure compliance with the specified Service Bulletins and deadlines (Section 2). This includes verifying the condition of the rudder control system and addressing any issues with the microswitch WM2, which has been identified as a cause of unsolicited engagement of the rudder gust lock. Operators are required to implement the recommended actions to mitigate risks associated with wind gust and jet blast damage.
Failure to comply with the requirements set out in this regulation may result in significant consequences (Section 3). Although the specific penalties are not detailed in the provided text, non-compliance with Civil Aviation Regulations generally can lead to enforcement actions, including fines and potential grounding of the aircraft. The overarching intent is to ensure the airworthiness and safety of the aircraft, thereby protecting passengers and crew. Continuous adherence to these directives is crucial to avoid any civil or criminal liabilities that might arise from violations.