AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.
Cessna 190 and 195 Series Aeroplanes
AD/CESSNA 190/7 Upper Shoulder Harness Adjuster Spring
13/2004
Applicability: Models 190 and 195 aircraft, with serial numbers listed in Cessna Single Engine Service Bulletin (SB) SEB86-8 Revision 1, dated 28 July 2003.
Requirement: 1. Inspect only the upper shoulder harness adjuster (part number 443030-401) for the presence of a retainer spring, in accordance with SB SEB86-8 Revision 1.
If a retainer spring is found during the above inspection of the upper shoulder harness adjuster (part number 443030-401), before further flight, remove the spring by cutting each side, and stamp out the -401 identification number; in accordance with SB SEB86-8 Revision 1.
If a retainer spring is not found during the above inspection of the upper shoulder harness adjuster (part number 443030-401), before further flight, make an entry in the aircraft log book showing compliance with this Directive.
2. Only incorporate Cessna Accessory Kits that have been identified, inspected, and modified in accordance with the Requirement document.
Note: FAA AD 2004-19-01 Amdt 39-13795 refers.
Compliance: 1. Within the next 25 hours time in service or at the next annual inspection after 23 December 2004, whichever occurs first.
2. As of the effective date of this Directive.
Note: Compliance with SB SEB86-8 original issue, dated 21 November 1986, constitutes terminating action for the requirements of this Directive, if shoulder harness adjuster part number 443030-401 was used.
This Airworthiness Directive becomes effective on 23 December 2004.
Cessna 190 and 195 Series Aeroplanes
AD/CESSNA 190/7 (continued)
Background: The manufacturer determined that some of the shoulder harness belt adjusters included in the affected shoulder harness accessory kits may have had a small wire spring inadvertently installed on the belt friction pin. The actions required by this Directive are intended to prevent slippage of the pilot/co-pilot shoulder harness, which could result in failure of the shoulder harness to maintain proper belt length adjustment and tension.
David Villiers
Delegate of the Civil Aviation Safety Authority 12 November 2004
The above AD is notified in the Commonwealth of Australia Gazette on 1 December 2004.
Overview
The Airworthiness Directive issued by the Civil Aviation Safety Authority (CASA) on 12 November 2004, known as AD/CESSNA 190/7, pertains to the Cessna 190 and 195 Series aeroplanes, specifically addressing the issue of the upper shoulder harness adjuster spring. This directive was enacted to mitigate the risk of unsafe conditions caused by the inadvertent installation of a small wire spring in the shoulder harness belt adjusters, which could lead to improper belt length adjustment and tension, thereby posing a safety risk. The directive aims to ensure that the identified aeroplanes are compliant with safety standards by requiring inspections and modifications as outlined in the directive. Compliance with this directive is mandatory for maintaining the airworthiness of the affected aircraft.
Scope and Application
The Airworthiness Directive issued under subregulation 39.1 (1) of the Civil Aviation Safety Regulations 1998 applies specifically to Cessna 190 and 195 series aeroplanes with serial numbers listed in Cessna Single Engine Service Bulletin SEB86-8 Revision 1, dated 28 July 2003. This AD mandates certain actions to address an identified unsafe condition relating to the upper shoulder harness adjusters. The primary objective of this directive is to ensure that the shoulder harness adjusters do not have a retainer spring installed, which could potentially cause the harness to slip, leading to inadequate belt length adjustment and tension. The required actions must be carried out within specified timeframes, either within 25 hours of the directive's issue or at the next annual inspection, whichever is earlier. Compliance with an earlier service bulletin, SB SEB86-8, which was originally issued on 21 November 1986, is recognised as fulfilling the requirements of this directive if the specified shoulder harness adjuster part number 443030-401 was used. This directive applies across the Commonwealth of Australia and is effective from 23 December 2004.
Key Provisions
The Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) mandates specific actions to ensure the safe operation of Cessna 190 and 195 Series Aeroplanes. This directive, AD/CESSNA 190/7, applies to these aircraft models with serial numbers listed in the Cessna Single Engine Service Bulletin (SEB) SEB86-8 Revision 1 dated 28 July 2003. The requirement outlined in this AD is to inspect the upper shoulder harness adjuster (part number 443030-401) for the presence of a retainer spring, in accordance with SB SEB86-8 Revision 1. If a retainer spring is found, it must be removed by cutting each side and stamping out the -401 identification number before further flight. Conversely, if no retainer spring is found, an entry must be made in the aircraft logbook to show compliance with this directive. Additionally, only Cessna Accessory Kits that have been identified, inspected, and modified in accordance with the requirement document can be incorporated.
Entities and parties governed by this AD are obligated to perform the specified inspections and actions promptly. The directive stipulates compliance within the next 25 hours of time in service or at the next annual inspection after 23 December 2004, whichever occurs first. It is also imperative to adhere to the instructions provided in SB SEB86-8 Revision 1 during the inspection and any subsequent actions. The compliance timeline ensures that the measures are implemented in a timely manner to mitigate any safety risks associated with the inadvertent installation of the retainer spring.
Failure to comply with the AD could lead to serious safety implications, potentially resulting in the slippage of the pilot/co-pilot shoulder harness. This could compromise the safety of the aircraft by preventing the shoulder harness from maintaining proper belt length adjustment and tension. The directive is clear that compliance with SB SEB86-8 original issue, dated 21 November 1986, constitutes terminating action for the requirements of this AD if the shoulder harness adjuster part number 443030-401 was used. The AD became effective on 23 December 2004, and its notification was published in the Commonwealth of Australia Gazette on 1 December 2004. The directive aims to ensure the continued airworthiness and safety of the affected aircraft by addressing a specific unsafe condition.