AIRWORTHINESS DIRECTIVE AD/PA-23/46
Piper PA-23 Aztec · Airworthiness Directives
Overview
This document is an Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) of Australia, specifically targeting the Piper PA-23 series aircraft, including the Apache and Aztec models. The directive outlines necessary actions to address safety concerns regarding the exhaust system of these aircraft. It mandates inspections and modifications to ensure compliance with safety standards. The AD is applicable to all Piper PA-23-250 and PA-E23-250 aircraft with specific serial numbers and equipped with non-supercharged engines. The directive emphasizes the importance of regular inspections and adherence to the specified maintenance procedures to maintain airworthiness and safety in operations.
- Effective date of amendment: 12 February 2009
- Applies to Piper PA-23-250 and PA-E23-250 aircraft with serial numbers 27-2505 and up
- Visual inspection of engine exhaust system required
- Adjust and align ball joint stack assemblies as per Piper SB No. 319
- Periodic inspections must not exceed 100 hours time in service
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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- 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
Applicability
The Airworthiness Directive applies to all Piper PA-23-250 and PA-E23-250 aircraft with serial numbers 27-2505 and higher, specifically those equipped with non-supercharged engines.
Requirement
The directive requires a visual inspection of the engine exhaust system and alternate air heat shroud, following the guidelines set forth in FAA AD 72-14-05. Additionally, it mandates the adjustment and alignment of ball joint stack assemblies and supports as per Piper Service Bulletin No. 319.
Compliance
Compliance with the directive is required at each scheduled inspection for the issuance of a maintenance release, following the effective date of this amendment. The amendment becomes effective on 12 February 2009.
Background
Originally issued in 1971, this AD specified a once-only inspection and modification of the exhaust system. The current amendment aligns with FAA AD 72-14-05, which includes a requirement for periodic inspections at intervals not exceeding 100 hours.
Safety notes
- Ensure compliance with the inspection and modification requirements to maintain airworthiness.
- Failure to comply with the AD may result in unsafe operating conditions.
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) AD/PA-23/46 and issues the following 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. Piper PA-23 (Apache and Aztec) Series Aeroplanes AD/PA-23/46 Amdt 1 Exhaust System - Inspection and Modification 2/2009 Applicability: All models Piper PA-23-250 and PA-E23-250 aircraft with serial numbers 27-2505 and up, equipped with non-supercharged engines. Requirement: 1. Visually inspect engine exhaust system and alternate air heat shroud in accordance with FAA AD 72-14-05 (amdt 39-1943). 2. Adjust and align ball joint stack assemblies and supports in accordance with Piper SB No. 319. Note: FAA AD 72-14-05 (amdt 39-1943) paragraph b. refers. Compliance: At each scheduled inspection for issue of a maintenance release following the date of effectivity of this amendment. This Amendment becomes effective on 12 February 2009. Background: This AD was originally issued in 1971. It specified once-only inspection and modification of the exhaust system in accordance with Piper SB No. 319 within 100 hours time in service after July 1971. This amendment matches FAA AD 72-14-05, including the FAA requirement for periodic inspection at intervals not to exceed 100 hours. James Coyne Delegate of the Civil Aviation Safety Authority 23 December 2008