COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
DH 82 (Tiger Moth) Series Aeroplanes
AD/DH 82/9
Amdt 1
Datum Bolts 10/98
Applicability: Model DH82 and DH82A Moth aircraft.
Requirement: Action in accordance with British Aerospace Technical News Sheet CT (Moth) No.
28 Issue 2.
Note: UK CAA AD 002-10-97 refers.
Compliance: Unless already accomplished, within 25 hours time in service after 10 September 1998, or before 10 December 1998, whichever occurs first.
This amendment becomes effective on 10 September 1998.
Background: Moth aircraft have special bolts installed at certain fuselage joints which serve as “datum pins” when rigging the aircraft longitudinally. Although these bolts are similar in appearance, their material specifications differ. This Directive requires an inspection of the bolts installed at joint “E” (on some models) to determine the material specification.
Amendment 1 is issued in response to Issue 2 of the Requirement document which introduces an additional one-time inspection and replacement, where necessary, of the fuselage Joint ‘E’ bolts on the opposite side of the aircraft to the datum bolts, and to allow the use of A25 bolts in lieu of obsolete specification AGS. 749 bolts.
The original issue of this airworthiness directive became effective on 12 November 1997.
Overview
The Civil Aviation Regulations 1998, specifically Part 39 - 105, outlines the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives, including the AD/DH 82/9 Amendment 1 concerning the datum bolts of the DH 82 (Tiger Moth) series aeroplanes. This legislation was introduced to address a critical safety issue related to the material specifications of certain fuselage bolts in the Tiger Moth aircraft. The problem identified was the potential for incorrect or obsolete bolts to be installed, which could compromise the structural integrity of the aircraft during operation. The policy objective of this directive is to ensure that the bolts installed at critical fuselage joints meet the required material specifications, thereby enhancing the safety and airworthiness of the aircraft.
The amendment, effective from 10 September 1998, mandates an inspection and, if necessary, the replacement of the bolts at joint "E" on certain models of the DH 82 Moth aircraft within 25 hours of service time after 10 September 1998 or before 10 December 1998, whichever occurs first. This directive follows British Aerospace Technical News Sheet CT (Moth) No.28 Issue 2 and references UK CAA AD 002-10-97. The requirement was enacted by the Australian Government to align with international safety standards and ensure compliance with the stringent safety protocols mandated by CASA.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105 under the Civil Aviation Safety Authority Schedule of Airworthiness Directives, applies to the DH 82 (Tiger Moth) series aeroplanes, including both the DH82 and DH82A Moth aircraft. This legislative instrument mandates that certain actions be undertaken in accordance with the British Aerospace Technical News Sheet CT (Moth) No.28 Issue 2, and references UK CAA AD 002-10-97 for compliance guidelines. The directive requires that inspections and necessary actions be completed within 25 hours of time in service following 10 September 1998, or by 10 December 1998, whichever comes first. The amendment became effective on 10 September 1998, and it specifically targets the inspection of datum bolts installed at fuselage joint “E” to verify their material specifications. The directive also includes an additional one-time inspection and replacement, if required, of the fuselage Joint ‘E’ bolts on the opposite side of the aircraft, and allows the use of A25 bolts in place of the obsolete AGS. 749 bolts. This regulatory framework ensures the continued airworthiness and safety of DH 82 series aeroplanes within the Australian jurisdiction.
Key Provisions
The Civil Aviation Regulations 1998, specifically under Part 39 - 105, address the airworthiness directives for various types of aircraft, including the DH 82 (Tiger Moth) series aeroplanes. One of the key sections relevant to this aircraft model is AD/DH 82/9 Amendment 1, which pertains to datum bolts (section 1). This directive applies to the DH 82 and DH 82A Moth aircraft and mandates compliance with British Aerospace Technical News Sheet CT (Moth) No.28 Issue 2, as referenced in UK CAA AD 002-10-97. The primary requirement is to inspect and, if necessary, replace certain bolts at specific fuselage joints to ensure they meet the correct material specifications.
For parties governed by this legislation, the obligations include conducting inspections within 25 hours of the aircraft being in service after the effective date of 10 September 1998 or before 10 December 1998, whichever comes first. Specifically, the directive requires the inspection of bolts at joint “E” on certain models to ascertain their material specifications. This inspection must be completed as part of the ongoing maintenance schedule to ensure the aircraft remains airworthy. Additionally, owners and operators must replace any bolts found not to meet the required specifications with appropriate ones, such as the A25 bolts, which can replace the obsolete AGS. 749 bolts.
Failure to comply with the provisions set out in AD/DH 82/9 Amendment 1 can result in serious consequences. The Civil Aviation Safety Authority (CASA) enforces these regulations strictly to ensure safety in the aviation sector. Non-compliance may lead to penalties, including fines and potential grounding of the aircraft until the required inspections and repairs are performed. While specific monetary penalties are not detailed within the text, the overarching regulations provide for significant penalties for non-compliance with airworthiness directives. These can include both civil and criminal consequences, with the potential for severe fines and imprisonment for more serious breaches.