COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Oxygen Systems
AD/OXY/10
Amdt 1
Eros Full Face Oxygen Masks 12/92
Applicability: EROS full face quick donning oxygen mask regulators with the following part numbers in the serial number range 23007 to 42855 inclusive: MF10-02-01, MF10- 02-04, MF10-02-05, MF10-02-11, MF10-03-01, MF10-03-11, MF10-04-01, MF10-05-01, MF10-05-04, MF10-05-11, MF10-08-01.
Note: These units may also be marketed by Scott Aviation, Lancaster NY USA, with the original part number and serial number.
Requirement: 1. Mask regulators with serial numbers 23007 to 40094 inclusive - action in accordance with Paragraph 2 of EROS Service Bulletin MF10-35-47 Revision 1 dated 5 June 1992.
2. Mask regulators with serial numbers 40095 to 42855 inclusive - action in accordance with Paragraph 3 of EROS service Bulletin MF10-35-47 Revision 1 dated 5 June 1992.
Note: DGAC AD 92-085(AB)R2 dated 5 August 1992 refers.
Compliance: Requirement 1 - prior to 30 November 1992.
Requirement 2 - at the next workshop inspection.
Background: Possible incorrect installation of the headset lead can cause the headset lead clamp to come in contact with the N-100% oxygen regulator valve, resulting in the valve leaking when in the 100% position. The initial issue of this Directive required an inspection and if necessary, the relocation or replacement of the clamp to prevent contact with valve.
This amendment increases the serial number range of affected mask regulators, requires that mask regulators already inspected be identified with the letter 'A' in lieu of a 'red dot' and correctly identifies the item as a mask regulator.
Overview
The Civil Aviation Regulations 1998, amended by Legislative Instrument F2006B11421, address specific safety concerns regarding EROS full face oxygen masks used in aviation. Enacted by the Commonwealth of Australia, the primary objective of these regulations is to ensure the safety of aviation operations by addressing potential faults in oxygen systems. The regulations focus on correcting issues identified with certain EROS full face quick donning oxygen mask regulators, particularly those within a specified serial number range. These faults, if left unaddressed, could lead to serious safety risks, such as leaks in the oxygen regulator valve when set to the 100% position due to incorrect installation of the headset lead. This amendment expands the serial number range of affected mask regulators and updates the compliance requirements, ensuring that inspections and necessary actions are carried out in a timely manner to mitigate these risks.
Scope and Application
The AD/OXY/10 Amendment 1 pertains to specific EROS full face quick donning oxygen mask regulators with serial numbers within the range 23007 to 42855 inclusive, which are used in the aviation industry. These regulators are required to comply with the outlined actions to ensure safety standards are met, particularly focusing on preventing the oxygen regulator valve from leaking when in the 100% position. This legislative instrument applies to all entities within the Commonwealth of Australia that operate or maintain these specified oxygen mask regulators, ensuring they adhere to the Civil Aviation Regulations 1998. The scope of this directive is confined to the mentioned serial number range and specific part numbers, and it does not explicitly mention any exclusions or exemptions. Compliance with this directive is mandatory and must be achieved by the specified deadlines to maintain airworthiness and safety in aviation operations.
Key Provisions
The Civil Aviation Regulations 1998, particularly Part 39, Section 107, outlines the requirements and obligations concerning airworthiness directives (ADs) issued by the Civil Aviation Safety Authority (CASA). This legislative instrument, specifically AD/OXY/10 Amendment 1, addresses the critical issue of EROS full face quick donning oxygen mask regulators, which are essential components in aviation safety. The AD focuses on a particular series of these mask regulators, identified by their part numbers and serial number ranges, and mandates specific actions to rectify potential safety hazards.
The primary requirement (sections 1 and 2) mandates that mask regulators with serial numbers between 23007 and 42855 must undergo specific corrective actions, as detailed in the EROS Service Bulletin MF10-35-47 Revision 1 dated 5 June 1992. For serial numbers between 23007 and 40094, action must be taken according to Paragraph 2 of the Service Bulletin, while those between 40095 and 42855 must comply with Paragraph 3. Compliance deadlines are specified, with a requirement for inspections to be completed before 30 November 1992 for the earlier serial numbers, and at the next workshop inspection for the later range.
Entities governed by this AD, including aircraft operators and maintenance providers, are required to meticulously follow the outlined corrective actions to ensure the integrity and safety of the oxygen mask regulators. This includes inspecting the regulators, relocating or replacing the headset lead clamp as necessary to prevent it from coming into contact with the N-100% oxygen regulator valve, and marking the inspected regulators with an 'A' instead of a 'red dot' to identify them as compliant.
Failure to comply with these airworthiness directives can result in significant consequences. Breaches of these regulations can lead to enforcement actions, and in severe cases, civil or criminal penalties. The exact penalties for non-compliance are not detailed in the provided text but typically include fines and potential grounding of non-compliant aircraft, which can severely impact aviation operations and safety.
In summary, the AD/OXY/10 Amendment 1 is a critical legislative instrument aimed at ensuring the safety of aviation oxygen mask regulators. It mandates specific actions for certain serial numbers, imposes compliance deadlines, and carries the risk of enforcement actions and penalties for non-compliance.