COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Electrical Equipment
AD/ELECT/43 J.E.T. Emergency Power Supply - Inspection/Modification
Applicability: All J.E.T. power supplies. Model PS835 series.
Requirement: 1. If the installation incorporates a panel located battery test switch, install a temporary placard near the test switch which reads as follows:
“To test emerg pwr supply
- Disregard emerg pwr sw test position.
2. A/C master/batt sw - off.
3. Emerg pwr sw - on.
4. Ck operation of accessory/instr”.
2. Modify as required by JET Alert SB A-SB501-1228-7. FAA AD 82-21-04 Amendment 39-4475 refers.
Compliance: For Para. 1 - Within 100 hours time in service after 31 March 1983. For Para. 2 - Within 200 hours time in service after 31 March 1983.
Background: To prevent false indication that emergency power is available.
3/83
Overview
The Civil Aviation Regulations 1998, as amended, play a crucial role in ensuring the safety and efficiency of aviation in Australia by setting forth comprehensive regulations for civil aviation operations. Part 39, specifically, addresses the airworthiness of aircraft, and includes Airworthiness Directives (ADs) to maintain safety standards. One such AD is AD/ELECT/43, which pertains to the J.E.T. Emergency Power Supply, specifically targeting installations of the Model PS835 series. This directive was introduced to address issues regarding the potential for false indications of available emergency power, a critical safety concern that could impact flight operations. The Civil Aviation Safety Authority (CASA), under the Australian Government, enacts these regulations to ensure that all aircraft maintain the highest safety standards, thereby protecting the public and maintaining the integrity of the national airspace.
The policy objective behind AD/ELECT/43 is to prevent operational errors that could arise from misindicating the availability of emergency power. By mandating specific modifications and placard installations, CASA aims to provide clear and unambiguous instructions to pilots and maintenance personnel, ensuring that emergency power supplies function correctly. This AD is a proactive measure to mitigate risks associated with emergency power systems, ultimately contributing to the overarching goal of enhancing aviation safety within Australia. Compliance with this directive is critical, with specific timeframes set for implementation to ensure timely adherence to safety protocols.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39, applies to all J.E.T. power supplies, particularly those of the PS835 series, in relation to ensuring the airworthiness of aircraft. This regulation is a direct mandate from the Civil Aviation Safety Authority and is aimed at maintaining the integrity and safety of emergency power supplies in aircraft. The requirement involves the installation of a temporary placard near the battery test switch of the power supply, instructing crew on the correct procedure to test the emergency power supply, and mandates a modification to comply with JET Alert SB A-SB501-1228-7 and FAA AD 82-21-04 Amendment 39-4475. Compliance timelines are stipulated for these requirements, with the placard installation needing to be completed within 100 hours of time in service after 31 March 1983, and the modification within 200 hours of the same period. This regulation extends to all aircraft utilising J.E.T. power supplies within Australia, ensuring a national standard of compliance with the specified airworthiness directives.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 107 under the Civil Aviation Safety Authority Schedule of Airworthiness Directives, contains provisions that mandate certain actions for the maintenance and inspection of J.E.T. emergency power supplies in aircraft. Section 1 of AD/ELECT/43 requires the installation of a temporary placard near the battery test switch if the aircraft's power supply incorporates such a panel. The placard must contain specific instructions for testing the emergency power supply, which includes turning off the aircraft master battery switch, turning on the emergency power switch, and checking the operation of accessories and instruments. Section 2 mandates that the emergency power supply be modified as per JET Alert SB A-SB501-1228-7 and FAA AD 82-21-04 Amendment 39-4475.
These sections impose clear obligations on aircraft operators and maintenance personnel. They must ensure that any J.E.T. power supply with a panel located battery test switch has the required placard installed. Additionally, operators must comply with the modifications detailed in the referenced safety bulletins and FAA airworthiness directive. These modifications are aimed at preventing false indications that emergency power is available, thus enhancing the safety and reliability of the aircraft's power systems. Compliance must be achieved within 100 hours for the placard installation and within 200 hours for the required modifications, following the effective date of 31 March 1983.
Failure to comply with these requirements can lead to significant legal consequences. The Civil Aviation Regulations do not specify exact penalties within the directive, but non-compliance with airworthiness directives generally can result in enforcement actions by the Civil Aviation Safety Authority. These actions can include fines, enforcement notices, and potential grounding of the aircraft until compliance is achieved. The severity of the penalties can depend on the nature and extent of the non-compliance, as well as any resulting safety risks.