COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Aerospatiale (Socata) TB9 and TB10 (Tobago) Series Aeroplanes
AD/TB10/25
Amdt 2
Wing Rear Attachment Fittings 10/96
Applicability: Models TB10 and TB200 S/N 804, 807,808, 816 to 819, 823 to 1701, 1707 to 1733,
1737 to 1761.
Requirement: 1. Remove the cowling under hull Nr.218 to gain access to the wing rear attachment fitting. Visually inspect the bend radii of the wing to fuselage rear attachment fitting for cracks.
2. Remove and prepare the wing to rear fuselage rear attachment fittings in accordance with Socata SB 10-82-57 Amdt.1 and inspect using a fluorescent dye penetrant per CAO 108.10.
Note: DGAC AD 94-249(A)R1 refers in part.
Compliance: 1. Initially inspect within 100 hours time in service after 22 June 1995, thereafter at intervals not exceeding 200 hours time in service.
2. Unless already accomplished in accordance with the initial issue of Requirement 2 Socata document; before the accumulation of 3 000 flights, or 2 000 hours time in service, whichever occurs first; thereafter at intervals not exceeding 3000 flights or 2000 hours time in service, whichever occurs first.
Installation of kit OPT10 920300 terminates this Directive on the side to which the kit is fitted.
The compliance remains unchanged from the previous issue. This Amendment becomes effective on 12 September 1996.
Background: Inspection of the wing to fuselage attachment is necessary to ensure the continued integrity of the structure.
Amendment 1 added an in-situ visual inspection of the fittings due to reports to the Authority of cracks developing within times significantly less than that required by the DGAC AD and the manufacturer.
Amendment 2 provides terminating action.
The original issue of this Airworthiness Directive became effective on 2 March 1995. Amendment 1 of this Airworthiness Directive became effective on 22 June 1995.
Overview
The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA) under the Civil Aviation Act 1988, address the safety of civil aviation operations in Australia. These regulations aim to ensure that aircraft meet stringent airworthiness standards to protect passengers and crew. Part 39 specifically focuses on the safety of aircraft through various airworthiness directives. One such directive, AD/TB10/25 Amendment 2, pertains to the Aerospatiale (Socata) TB9 and TB10 (Tobago) series aeroplanes, focusing on the wing rear attachment fittings. The directive was introduced to address issues identified in the integrity of the wing to fuselage attachment, which is critical for maintaining the structural integrity of the aircraft. The policy objective of this directive is to ensure the safety of these aircraft by mandating regular inspections and maintenance of the specified components, thereby preventing potential structural failures and enhancing overall aviation safety.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 – 105, govern the safety standards applicable to certain aircraft models, including the Aerospatiale (Socata) TB9 and TB10 (Tobago) Series Aeroplanes. This legislation mandates specific airworthiness directives, such as AD/TB10/25 Amendment 2, which focuses on the wing rear attachment fittings of designated models and serial numbers. The directive applies to these specific aircraft models to ensure the structural integrity of the wing to fuselage attachments. Compliance with these regulations is mandatory and requires detailed inspections at specified intervals, starting from the initial inspection within 100 hours of service after 22 June 1995, followed by inspections at intervals not exceeding 200 hours of service thereafter. Additionally, inspections must occur before the aircraft accumulates 3,000 flights or 2,000 hours of service, whichever comes first, and subsequently at intervals not exceeding 3,000 flights or 2,000 hours of service. The installation of a specific kit terminates the directive on the side to which it is fitted. This directive is applicable nationally under the Commonwealth of Australia, and it extends to ensure compliance with international standards referenced in DGAC AD 94-249(A)R1.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105 under the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, includes detailed provisions concerning the maintenance and inspection of Aerospatiale (Socata) TB9 and TB10 (Tobago) Series Aeroplanes. One such directive, AD/TB10/25 Amendment 2, focuses on wing rear attachment fittings (section 1). This directive applies to specific models of the aircraft, including TB10 and TB200 with certain serial numbers (section 2). The primary requirement is to visually inspect the wing to fuselage rear attachment fittings for cracks (section 3.1). This involves removing the cowling under hull number 218 and conducting an inspection. Additionally, the wing rear attachment fittings must be removed, prepared, and inspected using a fluorescent dye penetrant in accordance with the Socata Service Bulletin 10-82-57 Amendment 1 and Civil Aviation Order (CAO) 108.10 (section 3.2).
Operators of these aircraft are obligated to comply with the specified inspection intervals. The initial inspection must occur within 100 hours of time in service following the directive's issuance date of 22 June 1995. Subsequent inspections must occur at intervals not exceeding 200 hours of time in service (section 4.1). Furthermore, before accumulating 3,000 flights or 2,000 hours of time in service, whichever comes first, another inspection must be conducted unless it has already been completed in accordance with the initial issue of Requirement 2 Socata document (section 4.2). Thereafter, inspections must be conducted at intervals not exceeding 3,000 flights or 2,000 hours of time in service, whichever comes first. It is important to note that the installation of the kit OPT10 920300 terminates this directive on the side to which the kit is fitted (section 4.3).
Failure to comply with the provisions of this Airworthiness Directive may result in serious safety implications, as the structural integrity of the aircraft is at risk. The regulations do not explicitly detail the penalties for non-compliance; however, non-compliance with airworthiness directives typically results in enforcement actions by CASA. This can include fines, suspension or revocation of airworthiness certificates, and other civil or criminal penalties as stipulated in the Civil Aviation Act 1988 and other related regulations. The severity of the penalties may vary depending on the circumstances and the extent of non-compliance.