COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Electrical Equipment
AD/ELECT/66
Amdt 1
Bendix Magneto Coils and Rotating Magnets 10/95
Applicability: Teledyne Continental Motors (TCM) Ignition Systems (formerly Bendix) magnetos as listed below. Magnetos manufactured by Bendix in Jacksonville FL and those manufactured by TCM in Atlanta GA (as indicated on the data plate) are excluded.
S-20, S-200 and S-600 series magnetos with either serial numbers below 2000000 without any letter prefix or with serial numbers below 16058 having the letter `A” prefix (for example A16057).
S-20, S-200 and S-600 series magnetos with data plates marked
`REMANUFACTURED” and with serial numbers below 901001.
S-1200 series magnetos with either serial numbers below 2000000 without any letter prefix or with serial numbers below 132844 having the letter `A” prefix.
S-1200 series magnetos with data plates marked `REMANUFACTURED” and with serial numbers below 901001.
Note 1: CASA has received reports of some confusion as to what is meant by S-20, S- 200, S-600 and S-1200. A typical example is S6RN-25, where the `S” designates a single type ignition unit, the `6” designates the number of engine cylinders, the `R” designates right hand rotation, the `N” is the manufacturer designator (this did not change when TCM purchased the Bendix magneto product line) and the number after the dash indicates the series (a -25 is a S-20 series magneto, while a -1225 is a S- 1200 series magneto.
Note 2: If a Bendix magneto data plate has been replaced with an overhaul facility's data plate, this Directive is still applicable to that magneto as the magneto is a Bendix magneto.
Note 3: Yellow Bendix or TCM service spare data plates may have been installed during field overhaul, use the magneto model and serial number to determine the applicability of this Directive.
Note 4: The paint on some early data plates may have been obliterated and the data plate may appear silver in colour, use the magneto model and serial number to determine the applicability of this Directive.
Requirement: For Bendix S-20 and S-200 series magnetos, inspect and if necessary, replace Bendix ignition coils and rotating magnets identified in the Detailed Instructions of TCM Ignition Systems Mandatory Service Bulletin MSB644 dated 4 April 1994 with appropriate serviceable ignition coils and rotating magnets.
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
For the Bendix S-600 series magnetos, inspect and if necessary, replace Bendix rotating magnets identified in the Detailed Instructions of TCM Ignition Systems Mandatory Service Bulletin MSB644 dated 4 April 1994 with appropriate serviceable rotating magnets. (Ignition coils of the S-600 series magnetos already incorporate the improved design.)
For the Bendix S-1200 series magnetos, inspect and if necessary, replace Bendix ignition coils identified in the Detailed Instructions of TCM Ignition Systems Mandatory Service Bulletin MSB644 dated 4 April 1994 with appropriate serviceable ignition coils. (The rotating magnets of the S-1200 series magnetos already incorporate the improved design.)
Note: Previous compliance with AD/ELECT/53 Amdt 2 or earlier issues of that Directive does not constitute full compliance with this Directive, similarly compliance with Bendix Electrical Components Division Service Bulletin 560 or 560A would not constitute full compliance.
Compliance: The original compliance remains unchanged as within the next 100 hours time in service after 10 November 1994. This amendment is effective from 14 September 1995.
Note: FAA AD 94-01-03 R2 Amdt 39-9271 refers.
Background: The original issue of this Directive superseded AD/ELECT/53 Amdt 2, which was cancelled. Reports are still being received of `clear case coils” being identified during magneto servicing, compliance with this Directive, whilst ensuring that all coils of this type are finally removed from Australian aircraft, will also ensure that older style rotating magnets are removed.
This amendment is issued to clarify the applicability statement and reflects the issue of a revision to the FAA Airworthiness Directive, no further action is required if magnetos are in compliance with the original issue of this Directive.
Overview
The Civil Aviation Regulations 1998, as amended by the PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Electrical Equipment AD/ELECT/66Amdt 1, was enacted to address issues relating to the safety of electrical equipment in aircraft, specifically the Bendix Magneto Coils and Rotating Magnets. This legislative instrument was introduced to ensure the safety of aviation by mandating specific inspections and, if necessary, replacements of certain components in aircraft ignition systems to prevent failures that could potentially lead to accidents. The enactment of this directive was overseen by the Australian Parliament, aiming to align with international safety standards and address specific safety concerns identified in the Bendix and TCM ignition systems. The policy objective of this legislation is to enhance the safety of civil aviation by ensuring that all aircraft meet stringent airworthiness standards, thereby protecting the public and maintaining the integrity of the aviation industry.
Scope and Application
The Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, specifically AD/ELECT/66 Amendment 1, pertains to certain Teledyne Continental Motors (TCM) ignition systems, formerly known as Bendix, that are installed on aircraft in Australia. This legislation applies to S-20, S-200, S-600, and S-1200 series magnetos, manufactured by Bendix in Jacksonville, FL and TCM in Atlanta, GA, with specific serial number and data plate exclusions detailed in the legislation. This includes magnetos with data plates marked "REMANUFACTURED" and certain serial numbers. Notably, magnetos manufactured by Bendix in Jacksonville, FL and TCM in Atlanta, GA are excluded if they have specific serial numbers or letter prefixes indicated on their data plates. This directive is intended to ensure the safety of Australian civil aviation by requiring the inspection and, if necessary, replacement of specific Bendix ignition coils and rotating magnets in these magnetos to prevent issues such as "clear case coils" from persisting in Australian aircraft. The compliance requirement necessitates that these actions be completed within the next 100 hours of service after 10 November 1994, with the amendment effective from 14 September 1995. This directive underscores the importance of adhering to specific safety protocols to maintain the airworthiness of aircraft in Australia.
Key Provisions
The main operative sections of the Civil Aviation Regulations 1998, specifically within Part 39 - 107, focus on the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives concerning electrical equipment, particularly Bendix Magneto Coils and Rotating Magnets. Section AD/ELECT/66 Amendment 1 sets out the applicability of this directive, excluding certain Bendix and Teledyne Continental Motors (TCM) magnetos. The directive applies to specific series of Bendix magnetos, such as the S-20, S-200, S-600, and S-1200 series, with certain serial numbers and data plate markings. This amendment clarifies the applicability and references an earlier Federal Aviation Administration (FAA) Airworthiness Directive (AD 94-01-03 R2 Amdt 39-9271).
The obligations imposed by this Act require aircraft owners, operators, and maintenance personnel to inspect and, if necessary, replace certain Bendix ignition coils and rotating magnets. For Bendix S-20 and S-200 series magnetos, both the ignition coils and rotating magnets must be inspected and replaced if necessary. For the Bendix S-600 series, only the rotating magnets need inspection and replacement. In the case of Bendix S-1200 series magnetos, only the ignition coils are subject to inspection and replacement. This inspection and replacement must be in accordance with the Detailed Instructions provided in TCM Ignition Systems Mandatory Service Bulletin MSB644 dated 4 April 1994. Previous compliance with other directives does not satisfy the requirements of this directive.
Failure to comply with this directive can result in civil and criminal consequences. The primary risk is the potential for non-compliant magnetos to fail in service, leading to safety issues. While the specific penalties are not detailed in the provided text, non-compliance with CASA directives generally can result in enforcement actions, including fines and potential grounding of the aircraft until compliance is achieved. The severity of penalties may vary based on factors such as the degree of non-compliance and the potential risk posed to aviation safety.