AD/ELECT/60 - Precise Flight Incorporated Pulselite

Overview

The Civil Aviation Regulations 1998, established by the Australian Parliament, were enacted to regulate civil aviation within Australia, ensuring safety and consistency with international standards. Part 39, in particular, addresses the safety of aircraft equipment, with a focus on airworthiness directives. One such directive, AD/ELECT/60, targets specific electrical equipment issues in aircraft, specifically the Precise Flight Incorporated Pulselite units. This directive was introduced to address a critical safety issue where Pulselite units were reported to overheat and fail due to under-rated transistors, posing a risk of smoke entering the cockpit and potential damage to surrounding areas. The policy objective is to mitigate these risks by either removing the identified Pulselite units from service or replacing them with improved versions, thereby enhancing the safety and reliability of electrical equipment in small aircraft. The directive mandates that Pulselite units of specific serial numbers must be removed or replaced by a certain date, with new installations being prohibited to prevent the recurrence of these safety issues. The compliance period was set to ensure that aircraft operators have adequate time to address the directive, aligning with similar measures taken by the Federal Aviation Administration in the United States. By implementing these measures, the Civil Aviation Safety Authority aims to maintain high standards of safety in Australian civil aviation, protecting both aircraft occupants and the broader aviation community.

Scope and Application

The Civil Aviation Safety Authority (CASA) has issued an Airworthiness Directive (AD) under the Civil Aviation Regulations 1998, specifically targeting electrical equipment for certain Pulselite units produced by Precise Flight Incorporated. This legislation applies directly to Precise Flight Incorporated Pulselite Units Model 1210-2405-2 with serial numbers ranging from X00150 to X01371 inclusive, which may be installed in various small aircraft as per the FAA Supplemental Type Certificate SA4005NM. The directive mandates either the removal of these units from service and restoration of the aircraft to its original state, or replacement with Model 1210-2405-2A units, as outlined in Precision Flight Incorporated Service Bulletin PL9303001 dated 10 March 1993. Furthermore, new installations of the Model 1210-2405-2 Pulselite units are strictly prohibited. Compliance with these requirements is subject to specific timelines, with the removal and replacement of existing units needing to be completed prior to 19 August 1994, and the prohibition on new installations taking effect from 19 August 1993. This directive aims to mitigate the risk of overheating and subsequent failures in the Pulselite units, which can result in significant safety hazards such as smoke in the cockpit and potential damage to surrounding areas.

Key Provisions

The Civil Aviation Regulations 1998, specifically under Part 39, Section 107, mandate actions concerning electrical equipment for aircraft. In this context, AD/ELECT/60 pertains to Precise Flight Incorporated's Pulselite Units, specifically the Model 1210-2405-2, serial numbers X00150 through X01371 inclusive, which may be installed in various small aircraft as per FAA Supplemental Type Certificate SA4005NM. The directive requires either the removal of these Pulselite units from service and a return to the aircraft's original state or the replacement of the units with Model 1210-2405-2A units, in accordance with Precision Flight Incorporated Service Bulletin PL9303001 dated 10 March 1993. Additionally, the installation of new Model 1210-2405-2 Pulselite units is prohibited. The requirement for compliance with these directives was set with a specific timeline: compliance with the removal or replacement directive needed to be achieved prior to 19 August 1994, whereas the prohibition on new installations took effect from 19 August 1993. This directive references FAA AD 93-12-04 Amdt 39-8610 for additional details. Entities governed by these regulations, such as aircraft owners, operators, and maintenance providers, must ensure adherence to these provisions. They must inspect their aircraft to identify if any Pulselite Units Model 1210-2405-2 within the specified serial numbers are installed. If such units are found, they must be either removed and the aircraft restored to its original state, or the units must be replaced with the Model 1210-2405-2A units. Furthermore, any new installations of the Model 1210-2405-2 Pulselite units are strictly prohibited. Compliance with these requirements is crucial to ensure the safety of the aircraft and its occupants, preventing potential hazards such as overheating, which may lead to a pungent smell, smoke entering the cockpit, and possible damage to surrounding areas. Failure to comply with the directives stipulated in AD/ELECT/60 may result in civil or criminal consequences. The Civil Aviation Safety Authority (CASA) has the authority to enforce these regulations. Non-compliance could lead to penalties, and in severe cases, the aircraft may be grounded until the necessary modifications are made. The maximum penalties for breaches of these regulations may include fines and other sanctions as prescribed by the Civil Aviation Act 1988. It is imperative for all parties involved to adhere strictly to these directives to avoid any legal repercussions and to maintain the highest standards of aviation safety.