AIRWORTHINESS DIRECTIVE AD/BEECH 95/21
Beechcraft 95 Travel Air · Other Documents
Overview
This document is an Airworthiness Directive (AD) concerning the Beechcraft 95 Travel Air series aeroplanes. It specifically addresses the cancellation of AD/BEECH 95/21, which required inspections and repairs for potential cracks in the fuselage bulkheads at specified locations. The directive outlines the background of the original AD, compliance requirements, and the rationale for its cancellation. It emphasizes that normal maintenance inspection practices should suffice for ensuring airworthiness, negating the need for the previously mandated inspections. This document is intended for maintenance personnel and operators of the Beechcraft 95 Travel Air, ensuring they are informed of the current regulatory requirements regarding fuselage bulkhead inspections.
- The Airworthiness Directive AD/BEECH 95/21 has been cancelled as of 19 November 2009.
- The original directive required inspections of fuselage bulkheads FS 257.6 and FS 271.92 for cracks.
- Compliance with the original AD was required within 100 hours TIS after 30 April 1979, and subsequently at intervals not exceeding 500 hours TIS or 1 year.
- The cancellation was based on the absence of supporting State of Design ADs and the sufficiency of normal maintenance practices.
- The document serves as a notification to maintenance personnel and operators regarding the change in inspection requirements.
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
- Other Documents
- Year
- 2009
- Pages
- 1
- File size
- 13 KB
- Publisher
- services.casa.gov.au
Most owners only have the POH. Here's the essential set for the Beechcraft 95 Travel Air.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
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In this document
Airworthiness Directive Cancellation
The document announces the cancellation of Airworthiness Directive AD/BEECH 95/21, which was originally issued in 1979. The directive required inspections of fuselage bulkheads FS 257.6 and FS 271.92 for cracks, with compliance intervals set at 100 hours TIS after a specified date, and subsequently at intervals not exceeding 500 hours TIS or 1 year. The cancellation is effective as of 19 November 2009.
Background and Compliance History
The background section details the history of the AD, including its initial issuance and the compliance requirements that were in place for over three decades. It notes that there were 11 reports of defects related to this AD between 1982 and 2002, and highlights the conflict between the AD and the manufacturer's maintenance manual regarding inspection schedules.
Rationale for Cancellation
The rationale for cancelling the AD includes the lack of supporting State of Design ADs, the inclusion of relevant inspections in the manufacturer's maintenance manual, and the conclusion that normal maintenance practices are adequate for ensuring safety. The document emphasizes that the inspections mandated by the AD are no longer necessary.
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 On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive AD/BEECH 95/21. Beechcraft 95 (Travelair) Series Aeroplanes AD/BEECH 95/21 Fuselage Bulkheads FS 257.6 & FS 271.92 12/2009 Requirement: CANCELLED. This AD is cancelled on 19 November 2009. Background: This unique Australian AD, raised in 1979 against Beechcraft Service Instruction (SI) No. 0990, required an inspection/repair for possible cracks in the F.S. 257.6 and F.S. 271.92 bulkheads at the horizontal stabiliser stub spars. Compliance was within 100 hours TIS after 30 April 1979 and thereafter at intervals not exceeding 500 hours TIS or 1 year, whichever occurs first. Revision I and II to the SI calls for regular scheduled inspections of the bulkheads (100 hour, annual or progressive) whether or not a repair has been accomplished, which is in conflict with this AD. Also, the Beechcraft 95 Maintenance Manual references the details of the SI in the 100 hour inspection schedule. This AD required repetitive inspections, not supported by a State of Design AD, and has been promulgated for a number of years with 11 reports of defects in the mandatory reporting system between 1982 and 2002. In consideration of the number of reported defects, the period that this AD has been exposed to industry, the absence of a supporting State of Design AD, that the inspection of the empennage to fuselage attachments and surrounding structure are included in Schedule 5 (Section 1 paragraph (2) (g)), and that the manufacturers maintenance manual 100 hour inspection directly references Beechcraft SI No. 0990 Rev II, it is considered that normal maintenance inspection practices should be sufficient to meet the requirements of this unique AD. This AD is therefore cancelled. James Coyne Delegate of the Civil Aviation Safety Authority 30 September 2009