AIRWORTHINESS DIRECTIVE
Cessna 208 Caravan · Airworthiness Directives
Overview
This document is an Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) of Australia, specifically addressing safety concerns related to the Cessna 208 series aircraft. The directive mandates modifications to the aileron carry-through cable attachment to enhance safety and prevent potential control issues. It applies to specific serial numbers of both the Cessna 208 and 208B models, outlining compliance requirements and timelines. The directive is crucial for maintaining the airworthiness of the affected aircraft and ensuring safe operation in flight.
- Applies to Cessna 208 and 208B aircraft within specified serial number ranges.
- Modification required for aileron carry-through cable attachment.
- Compliance due within 100 hours or 6 months after 7 May 2009.
- Modification instructions are in Cessna Caravan Service Bulletin CAB08-6.
- Background concerns include potential control issues affecting roll control.
Document
Source
Originally published by services.casa.gov.au. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Airworthiness Directives
- Year
- 2009
- Pages
- 1
- File size
- 14 KB
- Publisher
- services.casa.gov.au
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In this document
Applicability
The Airworthiness Directive applies to Cessna 208 aircraft with serial numbers ranging from 20800001 to 20800415 and 20800417 to 20800419. It also applies to Cessna 208B aircraft with serial numbers 208B0001 to 208B1081, 208B1083 to 208B1215, 208B1217 to 208B1257, 208B1259 to 208B1305, 208B1307, and 208B1309 to 208B1310.
Requirement
The directive requires the modification of the aileron carry-through cable attachment to the aileron upper quadrant using parts of improved design. This modification must be performed in accordance with the Accomplishment Instructions detailed in Cessna Caravan Service Bulletin CAB08-6, dated 27 October 2008, or any later FAA approved revision.
Compliance
Compliance with the directive is required within 100 hours of time in service or within 6 months after the effective date of the directive, which is 7 May 2009, whichever occurs first.
Background
The directive was issued following reports from the FAA regarding a potential 'catch' in the aileron control system when the control yoke is turned. The required actions aim to prevent the cable attach fitting on the aileron upper quadrant assembly from rotating and potentially contacting the aileron lower quadrant assembly, which could lead to limited roll control and reduced handling capabilities.
Safety notes
- Failure to comply with this directive may result in limited roll control and reduced handling capabilities.
Full document text
COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Page 1 of 1 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 39.001(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 208 Series Aeroplanes AD/CESSNA 208/25 Aileron Upper Quadrant Carry-Through Cable Attachment 5/2009 Applicability: Model 208 aircraft, serial numbers 20800001 through 20800415 and 20800417 through 20800419. Model 208B aircraft, serial numbers 208B0001 through 208B1081, 208B1083 through 208B1215, 208B1217 through 208B1257, 208B1259 through 208B1305, 208B1307, and 208B1309 through 208B1310. Requirement: Modify the aileron carry-through cable attachment to the aileron upper quadrant with parts of improved design, in accordance with the Accomplishment Instructions in Cessna Caravan Service Bulletin CAB08-6 dated 27 October 2008, or later FAA approved revision. Note: FAA AD 2009-05-12 Amdt 39-15836 refers. Compliance: Within 100 hours time in service or 6 months after 7 May 2009, whichever occurs first. This Airworthiness Directive becomes effective on 7 May 2009. Background: The FAA received reports of a “catch” in the aileron control system when the control yoke is turned. The actions required by this Directive are intended to prevent the cable attach fitting on the aileron upper quadrant assembly from rotating and possibly contacting or interfering with the aileron lower quadrant assembly, which could result in limited roll control and reduced handling capabilities. David Villiers Delegate of the Civil Aviation Safety Authority 26 March 2009