COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Aerospatiale (Socata) TB20 (Trinidad) Series Aeroplanes
AD/TB20/28
Amdt 1
Front Seats 13/94
Applicability: Model TB20 & TB21 aircraft front seats with a tilting back-rest, installed from February 1991 on aircraft up to S/N 1479; except aircraft S/N 1192, 1193, 1308, 1426
thru 1433, 1448, 1461, 1462, 1464 thru 1469, 1471, & 1473 thru 1477.
Requirement: Action in accordance with Socata TB Service Bulletin 10-075-25 Amendment 1.
Note: DGAC AD 94-114(A)R1 refers.
Compliance: Unless already accomplished, within 50 hours time in service after 8 December 1994, or at the next inspection for maintenance release issue, whichever occurs first.
Background: The DGAC requires reinforcement of the front seat structure. Amendment 1 is issued to reflect an amendment of the manufacturer’s bulletin which clarifies applicability and weld filler material.
Overview
The Civil Aviation Regulations 1998, enacted by the Australian Government, form a crucial part of the regulatory framework governing civil aviation safety. Part 39 - 105 of these regulations includes specific Airworthiness Directives (ADs) aimed at maintaining the safety standards of various aircraft. One such AD is AD/TB20/28 Amendment 1, which pertains to the front seats of Aerospatiale (Socata) TB20 (Trinidad) Series Aeroplanes. This directive was introduced to address specific safety concerns identified in the front seats of certain model aircraft, ensuring that they meet the required safety standards. The objective is to mandate actions as specified in Socata's Service Bulletin to reinforce the front seat structure, thereby preventing potential safety hazards. Compliance with this directive is mandatory and must be completed within a specified timeframe to ensure the continued airworthiness of the affected aircraft.
The Civil Aviation Safety Authority (CASA) is the body responsible for enforcing these regulations, ensuring that all relevant aircraft meet the necessary safety standards. The policy objective behind AD/TB20/28 Amendment 1 is to mitigate risks associated with the structural integrity of the front seats in the specified aircraft models, thereby enhancing overall aviation safety. By adhering to the requirements outlined in this directive, operators and maintenance personnel can ensure that the aircraft remain compliant with the stringent safety standards set forth by CASA.
Scope and Application
The Civil Aviation Safety Authority’s Airworthiness Directive (AD) AD/TB20/28/Amdt 1 pertains specifically to Aerospatiale (Socata) TB20 (Trinidad) Series aeroplanes, namely model TB20 and TB21 aircraft, with front seats that have a tilting back-rest, installed from February 1991 on aircraft up to serial number 1479. The directive does not apply to aircraft with specific serial numbers, including 1192, 1193, 1308, 1426 through 1433, 1448, 1461, 1462, 1464 through 1469, 1471, and 1473 through 1477. The requirement mandates action in accordance with Socata TB Service Bulletin 10-075-25 Amendment 1, reflecting a reinforcement of the front seat structure as directed by the DGAC. Compliance is necessary unless already fulfilled, within 50 hours of time in service after 8 December 1994, or at the next inspection for maintenance release issue, whichever comes first. This directive extends the jurisdictional reach of the Civil Aviation Regulations 1998 across the Commonwealth of Australia, governing the safety standards for the specified aircraft models within its territory.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105, outline the Schedule of Airworthiness Directives which include directives for various aircraft, such as the Aerospatiale (Socata) TB20 (Trinidad) series aeroplanes. One such directive, AD/TB20/28 Amendment 1, pertains to the front seats of model TB20 and TB21 aircraft that have a tilting back-rest and were installed from February 1991 on aircraft up to serial number 1479. The directive excludes certain aircraft by serial number as specified in the document. The requirement of this directive is to implement the actions outlined in Socata TB Service Bulletin 10-075-25 Amendment 1. This action is necessary to reinforce the front seat structure, as referenced in DGAC AD 94-114(A)R1. Compliance with this directive must be achieved within 50 hours of the aircraft being in service after 8 December 1994, or at the next inspection for maintenance release, whichever comes first.
The obligations imposed by this directive on the parties governed by it include ensuring that the specified front seats are reinforced as per the manufacturer’s service bulletin. This involves adhering to the detailed instructions provided in Socata TB Service Bulletin 10-075-25 Amendment 1, which may include structural modifications, replacement parts, or specific maintenance procedures. Owners and operators of the affected aircraft are responsible for ensuring that these actions are completed within the stipulated timeframe, thus maintaining the airworthiness of the aircraft and ensuring compliance with civil aviation safety standards.
Failure to comply with the requirements of AD/TB20/28 Amendment 1 can lead to serious consequences. The legislation does not explicitly state penalties or specific consequences for non-compliance, but it is implied that such non-compliance could result in the aircraft being grounded until the necessary actions are taken. The enforcement of airworthiness directives is critical to maintaining safety standards, and non-compliance could potentially lead to further scrutiny, penalties, or other enforcement actions by the Civil Aviation Safety Authority (CASA). The exact penalties would be determined by CASA in accordance with other provisions of the Civil Aviation Act 1988 and related regulations.