COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Short SD3-60 Series Aeroplanes
AD/SD3-60/13 Fuel System - Fuel Pipe Shrouds 9/85
Applicability: All model SD3-60 with S/Nos SH3601 to SH3661 and SH3663 to SH 3665. Requirement: Action in accordance with Shorts SB SD360-28-12.
Compliance: 1. Carry out "Inspection of the collector tank housings for evidence of fuel leakage" called for in the Shorts Maintenance Programme (Zonal Inspection 5-27-01, Page 6, Item 17) at every second 'A' check (120 hours time in service) after 31 October 1985 until modified.
2. Modify before 31 July 1986.
3. On completion of the modification, the inspection intervals referred to in item one
(1) of the compliance may return to the normal Maintenance Programme intervals.
Background: The manufacturer advises that operational experience has found that certain of the existing fumeproof shronds can deteriorate and become porous. New shrouds manufactured to an improved specification have therefore been introduced.
Overview
The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA) and enacted by the Australian Parliament, are fundamental to maintaining safe and efficient aviation practices. One specific legislative instrument, F2006B06856, was introduced to address safety concerns in certain aircraft models. This particular instrument, AD/SD3-60/13, pertains to Short SD3-60 series aeroplanes and specifically targets issues with fuel system fuel pipe shrouds. The legislation aims to mitigate risks associated with potential fuel leaks by mandating inspections and modifications to the collector tank housings. This requirement is designed to ensure that any evidence of fuel leakage is identified and rectified in a timely manner, thus enhancing the overall safety of the aircraft. The policy objective is clearly to maintain stringent safety standards by ensuring the integrity of fuel system components through regular inspections and necessary modifications.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105 and the Schedule of Airworthiness Directives, mandate particular safety measures for certain aeroplanes, notably the SD3-60 Series, within the Australian jurisdiction. The regulation applies to all model SD3-60 aircraft with serial numbers ranging from SH3601 to SH3661 and SH3663 to SH3665. The requirement entails compliance with the Shorts Service Bulletin (SB) SD360-28-12, which necessitates specific actions regarding the fuel system. Operators must inspect the collector tank housings for fuel leakage during every second 'A' check, which occurs after 120 hours of service time, starting from 31 October 1985, until the modification is implemented. Additionally, the modification must be completed by 31 July 1986, after which the inspection intervals may revert to those specified in the normal maintenance programme. This directive is intended to address potential issues with the existing fuel pipe shrouds that can deteriorate and become porous, as identified by the manufacturer.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105, includes the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives (AD). The AD/SD3-60/13 pertains to the fuel system of Short SD3-60 Series aeroplanes, focusing on the fuel pipe shrouds (section 1). This directive applies to all model SD3-60 aeroplanes with serial numbers SH3601 to SH3661, and SH3663 to SH3665 (section 2).
To comply with AD/SD3-60/13, operators must follow the action outlined in Shorts SB SD360-28-12 (section 3). Firstly, they must inspect the collector tank housings for evidence of fuel leakage during every second 'A' check, which occurs after 120 hours of service time, starting from 31 October 1985 until the modification is made (section 4). Secondly, they must modify the fuel pipe shrouds before 31 July 1986 (section 5). After the modification, inspections can revert to the standard maintenance programme intervals (section 6).
Operators of the affected SD3-60 Series aeroplanes are required to adhere to these compliance steps, ensuring that the aircraft remain airworthy and compliant with safety regulations. Failure to comply with these provisions could result in safety risks, potentially leading to fuel leaks and other hazardous conditions. The CASA mandates these steps to mitigate risks associated with the deterioration of fuel pipe shrouds as experienced in the past.
Failure to comply with AD/SD3-60/13 may result in enforcement actions by CASA. Specifically, non-compliance with airworthiness directives can lead to significant legal consequences, including fines and potential grounding of the aircraft. The severity of the penalties can depend on the extent of non-compliance and the risk posed to aviation safety. Operators are therefore strongly encouraged to adhere strictly to the specified deadlines and requirements to avoid such repercussions.