AD/BEECH 300/13 - Inspection for Flight Control Interference with Wiring

Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), establish the safety standards for aircraft operation in Australia. Part 39 - 105 of the regulations includes the Schedule of Airworthiness Directives, which mandate specific maintenance and inspection requirements to ensure the ongoing airworthiness of particular aircraft models. The AD/BEECH 300/13 was enacted to address a safety issue identified with the Beechcraft 300 Series aeroplanes, specifically the risk of flight control interference due to inadequate clearance between the flight control mechanism and components located forward of the instrument panel. This directive was introduced in response to an incident where a Beechcraft aeroplane experienced a temporary loss of control due to entangled wiring. The policy objective is to mitigate such risks by enforcing rigorous inspection and maintenance procedures to prevent recurrence of such incidents.

Scope and Application

The Civil Aviation Regulations 1998, specifically PART 39 - 105, outlines the application of the Civil Aviation Safety Authority's (CASA) Airworthiness Directives, which are designed to maintain the airworthiness of aircraft within Australia. This particular directive, AD/BEECH 300/13, applies to Beechcraft 300 Series aeroplanes with specific serial numbers, namely from FL-152 through FL-179, FL-181 through FL-187, FL-189, FL-190, FL-192, FL-194, FL-196, through FL-205, and FL-207, FL-210, and FL-211. This legislation mandates inspections to prevent interference or inadequate clearance between the flight control mechanism and any components located forward of the instrument panel, as specified in Raytheon's Mandatory Service Bulletin 27-3232 dated March 1999. If any interference or inadequate clearance is found, all components must be secured away from the flight control mechanisms in accordance with the same bulletin. Exemptions apply if the aircraft has already undergone Raytheon Safety Communiqué No 149 dated August 1998 or its revision from November 1998. Compliance with this directive must be achieved within 25 hours of time in service after 19 May 1999 and before further flight following inspection.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandate adherence to the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives. One such directive, AD/BEECH 300/13, pertains to the inspection of flight control mechanisms for potential interference with wiring in Beechcraft 300 Series Aeroplanes (section 1). This directive applies to specific models and serial numbers of the B300 aircraft, as outlined in the document (section 2). Section 3 of the directive requires an inspection to be conducted unless it has already been performed. The inspection must ensure that there is no interference or inadequate clearance between the flight control mechanism and any components located forward of the instrument. This inspection must be done in accordance with Raytheon Mandatory Service Bulletin (SB) 27-3232 dated March 1999. If any interference or inadequate clearance is discovered, all components must be secured clear of the flight control mechanisms as per SB 27-3232. However, if Raytheon Safety Communiqué No 149 dated August 1998 or No 149 Rev 1 dated November 1998 has already been implemented, no further action is necessary. Compliance with AD/BEECH 300/13 is critical. The directive must be adhered to within 25 hours of the aircraft being in service after 19 May 1999, and before further flight is undertaken post-inspection (section 4). Failure to comply with these provisions can lead to significant safety risks, including the potential for loss of control as reported in a previous incident where the control column became restricted due to entangled wiring. The directive explicitly states that it becomes effective on 19 May 1999. Non-compliance with these airworthiness directives can result in severe consequences. Under Australian law, failure to adhere to these safety directives can lead to civil or criminal penalties, including fines and potential imprisonment. The exact penalties can vary, but they are designed to enforce compliance and ensure the safety of aviation operations.