AD/BEECH 55/83 - Outflow/Safety Valve

Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority, were enacted to ensure the safety of aviation operations in Australia. A specific legislative instrument, F2006B04029, pertains to Airworthiness Directives for certain Beechcraft aeroplanes. This directive, AD/BEECH 55/83, was introduced to address the identified problem of manufacturing defects in the outflow/safety valve of Beechcraft 55, 58, and 95-55 (Baron) Series Aeroplanes, specifically model 58P and 58PA aircraft with serial numbers TJ-3 through TJ-497. The directive mandates the inspection and necessary replacement of the outflow/safety valve to prevent the risk of rapid decompression due to valve failure. Compliance with this directive is required within 200 hours’ time in service or four months from the effective date of the directive, which is 26 February 1998. This directive aligns with FAA AD 97-25-01 Amdt 39-10224 and aims to maintain the highest safety standards in Australian aviation. The enacting body for these regulations is the Commonwealth Parliament, which has established the Civil Aviation Safety Authority to implement and enforce the regulations. The policy objective of these regulations is to ensure that all civil aircraft operating in Australian airspace meet stringent safety standards, thereby protecting the public and maintaining the integrity of civil aviation operations. This legislative instrument is part of the broader framework aimed at preventing aviation accidents and incidents by addressing specific safety concerns as they arise.

Scope and Application

The Civil Aviation Regulations 1998, under Part 39 - 105, specifically addresses the Airworthiness Directives for the Beechcraft 55, 58 and 95-55 (Baron) Series Aeroplanes, with a focus on the AD/BEECH 55/83 outflow/safety valve directive. This legislation applies to Model 58P and 58PA aircraft, specifically those with serial numbers ranging from TJ-3 to TJ-497. It mandates the inspection and replacement of the outflow/safety valve in accordance with the detailed procedures in Beech SB 2484 Rev 1 dated October 1995. The directive further prohibits the installation of any unserviceable outflow/safety valve on any aircraft, as identified by this directive. The requirement for compliance necessitates that these inspections and necessary replacements occur within 200 hours of the aircraft's time in service or within four months from the directive's effective date of 26 February 1998, whichever comes first. The directive also references FAA AD 97-25-01 Amdt 39-10224, underscoring the importance of adhering to these safety standards to prevent rapid decompression due to manufacturing issues with the safety valve.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, address the maintenance and safety requirements for certain Beechcraft aeroplanes. In relation to the Beechcraft 55, 58 and 95-55 (Baron) series aeroplanes, AD/BEECH 58/83 mandates the inspection and replacement of the outflow/safety valve for Model 58P and 58PA aircraft, serial numbers TJ-3 through TJ-497 (Section 1). This requirement is outlined in the procedures detailed in Beech SB 2484 Rev 1 dated October 1995 (Section 2). It is explicitly prohibited to install any unserviceable outflow/safety valve on any aircraft, as stipulated in this directive (Section 3). This directive references FAA AD 97-25-01 Amdt 39-10224 (Section 4). The regulations impose specific obligations on the parties involved. Aircraft owners, operators, and maintenance personnel must ensure that the outflow/safety valve inspection and replacement are conducted within the specified timeframe of 200 hours’ time in service or four months from the directive's effective date of 26 February 1998, whichever comes first (Section 5). The directive mandates compliance with the detailed procedures outlined in the referenced document, ensuring that the safety valve is inspected for any manufacturing defects that could lead to a rapid decompression of the aircraft in the event of a valve failure (Section 6). Non-compliance with this airworthiness directive carries significant consequences. The installation of an unserviceable outflow/safety valve is explicitly prohibited, and any failure to adhere to the inspection and replacement requirements could result in severe safety risks (Section 7). The potential for a rapid decompression of the aircraft due to valve failure underscores the critical nature of these provisions. Failure to comply with the directive could lead to enforcement actions, including penalties or other regulatory measures imposed by the Civil Aviation Safety Authority (Section 8).