AD/F27/110 - Forward Cabin Partition Bulkhead Door Hinges

Overview

The Civil Aviation Regulations 1998, which were enacted to establish safety standards for civil aviation in Australia, include a range of safety directives aimed at maintaining the airworthiness of aircraft. One such directive is AD/F27/110, which pertains to Fokker F27 Series Aeroplanes and specifically addresses the issue of forward cabin partition bulkhead door hinges. This directive was introduced in response to an incident where a cabin door detached and partially blocked the doorway following a wheels-up landing, a problem stemming from the design of the two-part hinge assembly. The directive mandates compliance with Fokker S.B. F27/25-58 to replace the existing hinges with a more secure type, ensuring the safety of aircraft operations. The Civil Aviation Safety Authority, under the authority of the Australian Government, implemented this directive to enhance the structural integrity of the aircraft and prevent similar incidents from occurring in the future.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to all F27 aircraft listed in the Requirement Document. This regulation mandates compliance with Fokker Service Bulletin F27/25-58, which entails the replacement of the forward cabin partition bulkhead door hinges with a more secure type. The regulation is a direct response to a safety incident where the cabin door became detached and obstructed the doorway after a wheels-up landing, due to the vulnerabilities in the existing two-part hinge assembly. The requirement necessitates that this action be completed prior to 31 May 1986, with reference to the Netherlands R.L.D. AD 86/04. This regulation operates within the Commonwealth of Australia, under the oversight of the Civil Aviation Safety Authority, and is applicable to all entities or persons responsible for the maintenance and operation of the specified F27 aircraft. The directive ensures that these aircraft meet the required safety standards set forth by the Civil Aviation Regulations.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, contains the Civil Aviation Safety Authority's (CASA) schedule of airworthiness directives, which are legally binding requirements aimed at ensuring aircraft safety. One such directive, AD/F27/110, pertains to Fokker F27 Series aeroplanes and addresses issues with the forward cabin partition bulkhead door hinges (section 39-105). This directive was issued in response to a specific incident where the cabin door detached and blocked the doorway during a wheels-up landing, a problem attributed to the two-part hinge assembly that allows the door to be lifted and removed (section 39-105). The directive mandates actions in accordance with Fokker Service Bulletin F27/25-58 and references Netherlands Regulation L.D. AD 86/04 (section 39-105). The directive applies to all F27 aircraft listed in the Requirement Document and requires compliance prior to 31 May 1986 (section 39-105). The AD/F27/110 directive imposes obligations on aircraft operators to ensure that the forward cabin partition bulkhead door hinges on their Fokker F27 aircraft are replaced with a more secure type as outlined in Fokker Service Bulletin F27/25-58. This involves a thorough inspection of the existing hinges and their replacement if necessary, to mitigate the risk of the cabin door detaching during flight or landing (section 39-105). Operators must ensure that the modifications are completed and verified by a licensed aircraft maintenance engineer before the specified compliance date of 31 May 1986 (section 39-105). Failure to comply with this directive could result in the aircraft being deemed unairworthy, thereby prohibiting its operation until the required modifications are made (section 39-105). Non-compliance with the AD/F27/110 directive could result in severe civil and criminal consequences. Under the Civil Aviation Act 1988, operators who fail to adhere to airworthiness directives may face fines, prosecution, and potential imprisonment (section 39-105). The specific penalties for breaching these regulations can include substantial fines, with the exact amount determined by the court based on the severity and impact of the non-compliance. Additionally, aircraft that are found to be in violation of the airworthiness requirements may be grounded, leading to operational disruptions and financial losses for the operator (section 39-105). It is imperative for operators to take the necessary steps to ensure compliance with this directive to avoid these serious repercussions.