AD/BELL 206/120 - Bogus Pressure Gauge Emergency Floats P/N 212-073-905-1

Overview

The Civil Aviation Regulations 1998, enacted by the Commonwealth of Australia, were introduced to regulate and ensure the safety and efficiency of civil aviation within the country. Part 39 of these regulations specifically addresses Airworthiness Directives (ADs), which are mandatory orders issued by the Civil Aviation Safety Authority (CASA) to ensure the safe operation of aircraft. One such directive, AD/BELL 206/120, pertains to the Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters, focusing on the issue of bogus pressure gauge emergency floats P/N 212-073-905-14/90DM. This directive was issued following a reported incident where a pressure gauge exploded at a significantly lower pressure than its rated capacity, leading to potential safety risks for maintenance personnel. The directive mandates compliance with Bell OSN-GEN-89-14 and requires corrective action to be taken at the next inspection or before the next charging of the emergency float reservoir, whichever comes first. The primary policy objective behind this directive is to mitigate the risk of injury and ensure the safe operation of affected aircraft.

Scope and Application

The Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives applies to the Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series helicopters, with the specific directive AD/BELL 206/120 targeting the Bogus Pressure Gauge Emergency Floats P/N 212-073-905-14/90DM. This directive applies to all models of the mentioned helicopters and mandates compliance with the action specified in Bell OSN-GEN-89-14. The requirement necessitates that the action be taken at the next inspection for Maintenance Release issue after 28 February 1990 or before the next charging of the emergency float reservoir, whichever occurs earlier. This directive is a critical safety measure following a reported incident where the subject pressure gauge exploded at only 2000 psig, subsequently being identified as bogus. The failure of this gauge poses a significant risk of severe injury to maintenance personnel, thereby necessitating immediate and specific compliance with the directive to mitigate this risk. The directive is issued under the Civil Aviation Regulations 1998 and applies nationally across Australia, overseen by CASA, ensuring uniform safety standards are met throughout the Commonwealth.

Key Provisions

The Civil Aviation Regulations 1998, specifically within Part 39 - 105, include the Civil Aviation Safety Authority's schedule of airworthiness directives for certain aircraft models. For Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series helicopters, one pertinent directive is AD/BELL 206/120, which addresses issues with bogus pressure gauge emergency floats (Section 1). This directive mandates that the action outlined in Bell Operating Specification Notice (OSN) GEN-89-14 be implemented (Section 2). The requirement is to ensure compliance with this directive at the next inspection for maintenance release issue after 28 February 1990 or before the next charging of the emergency float reservoir, whichever occurs first (Section 3). This directive applies to all models within the specified series (Section 4). Under this directive, the obligations imposed on the parties or entities it governs include ensuring that the bogus pressure gauge emergency floats P/N 212-073-905-14/90DM are replaced or corrected as per the manufacturer's specified actions (Section 5). This involves following the detailed procedures outlined in the Bell OSN-GEN-89-14 to rectify the identified issue with the pressure gauge. The directive necessitates that the maintenance release is issued only after the required modifications or inspections are completed, ensuring the safety and integrity of the aircraft (Section 6). The compliance must be achieved within the specified timeline to mitigate risks associated with the bogus gauge, which could result in serious injury to maintenance personnel (Section 7). In the event of non-compliance with the AD/BELL 206/120 directive, there could be significant legal and safety repercussions. The Civil Aviation Regulations 1998 provide for potential offences and penalties for breaches of airworthiness directives (Section 8). While specific penalties are not detailed in this directive, general provisions under the Civil Aviation Act 1988 could apply, including substantial fines and, in severe cases, imprisonment for individuals or entities found to be in breach of safety regulations (Section 9). The potential civil and criminal consequences underscore the importance of adhering to the mandated timelines and procedures to maintain the safety standards required by the Civil Aviation Safety Authority (Section 10).