SCHEDULE OF AIRWORTHINESS DIRECTIVES
Beechcraft F33A Bonanza · 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 Beechcraft 33 & 35-33 series aircraft, including the F33A model. The directive outlines necessary actions to correct unsafe conditions associated with the flap flex shaft assembly. It is aimed at aircraft operators and maintenance personnel, providing clear instructions on compliance requirements to ensure the safety and airworthiness of the affected aircraft. The AD emphasizes the importance of inspecting and potentially replacing specific components based on their manufacturing dates, thereby preventing incidents related to flap failures.
- The AD applies to Beechcraft models E33, E33A, E33C, F33, F33A, F33C, G33, and 35-33 series.
- Operators must review aircraft records for flap flex shaft replacements since March 1, 2000.
- If replacements have occurred, inspect the flap flex shaft assemblies for manufacture dates.
- Flex shafts manufactured before January 2000 and after April 2001 do not require replacement.
- Flex shafts manufactured between January 2000 and April 2001 must be replaced before further flight.
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
- 2002
- Pages
- 2
- File size
- 15 KB
- Publisher
- services.casa.gov.au
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In this document
Applicability
The AD applies to various models within the Beechcraft 33 & 35-33 series, including the E33, E33A, E33C, F33, F33A, F33C, G33, and several 35 series models. All serial numbers of these aircraft are included in this directive.
Requirement
The directive outlines three main requirements: 1) Review aircraft records to check if the LH or RH flap flex shaft or flap actuator has been replaced since March 1, 2000. If not, no further action is required. 2) If replacements have occurred, inspect the identification label for the manufacture date of the flap flex shaft assemblies according to Raytheon Service Bulletin 27-3478. 3) Replace any flap flex shafts manufactured between January 2000 and April 2001.
Compliance
The compliance timeline for the requirements is as follows: 1) Review records within 25 flight hours from the effective date of the AD. 2) Conduct inspections within 25 flight hours from the effective date. 3) Replace affected flap flex shafts before further flight.
Background
The background section explains that the manufacturer has reported incidents of flap flex shaft separations leading to asymmetric flap conditions. These failures are linked to improper heat treatment of the shafts, particularly those manufactured between January 2000 and April 2001.
Safety notes
- Improper heat treatment of flap flex shafts can lead to failures and unsafe flight conditions.
Full document text
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Page 1 of 2 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 CAR 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. Beechcraft 33 & 35-33 (Debonair/Bonanza) Series Aeroplanes AD/BEECH 33/44 Flap Flex Shaft Assembly 3/2002 DM Applicability: Beechcraft Model E33, E33A, E33C, F33, F33A, F33C, G33, 35-33, 35-A33, 35- B33, 35-C33 and 35-C33A aircraft, all serial numbers. Requirement: 1. Review the aircraft records to determine if either the LH or the RH flap flex shaft, or the flap actuator has been replaced since 1 March 2000. If these components have not been replaced since 1 March 2000, no further action is required. Make an appropriate certification in the aircraft log book. 2. If either a LH or RH flap flex shaft, or a flap actuator has been replaced since 1 March 2000, inspect the identification label for manufacture date of the flap flex shaft assemblies in accordance with Raytheon Service Bulletin 27-3478. Flex shafts manufactured before January 2000 and after April 2001 do not require replacement. 3. Replace flap flex shafts that were manufactured between January 2000 through April 2001. Note: FAA AD 2001-23-10 refers. Compliance: 1. Within 25 flight hours from the effective date of this Airworthiness Directive. 2. Within 25 flight hours from the effective date of this Airworthiness Directive. 3. Before further flight. This Airworthiness Directive becomes effective on 30 January 2002. COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Page 2 of 2 Beechcraft 33 & 35-33 (Debonair/Bonanza) Series Aeroplanes AD/BEECH 33/44 (continued) Background: The manufacturer has advised there have been a number of flap flex shaft separations leading to flap asymmetric situations. These flap flex shaft failures have been attributed to improper heat treatment. Flex shafts manufactured between January 2000 and April 2001 are affected. Gary John Carr Delegate of the Civil Aviation Safety Authority 22 January 2002 The above AD is notified in the Commonwealth of Australia Gazette on 30 January 2002.