COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Cessna 180, 182 and Wren 460 Series Aeroplanes
AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/CESSNA 180/78 Amdt 1 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.
AD/CESSNA 180/78
Amdt 2
Exhaust System - Inspection 7/2000
Applicability: Model 182S aeroplanes serial numbers 18280001 through 18280286 not incorporating improved design engine exhaust mufflers P/N 1254017-19 or P/N 9954200-9.
Requirement: 1. Carry out an inspection of exhaust system for cracking of the muffler end plates in accordance with procedures in Cessna Single Engine Service Bulletin SB98- 78-02 Revision 1.
2. Replace engine exhaust mufflers with one of improved design, P/N 1254017-19 or P/N 9954200-9, in accordance with Cessna SB 98-78-03 dated December 14, 1998.
Note 1: Replacement with improved design muffler P/N 1254017-19 or P/N 9954200- 9 provides terminating action for the requirements of this Directive.
3. Fabricate and install on the instrument panel in the cockpit, in clear view of the pilot in command, a placard that specifies inspection, before further flight, of all exhaust system muffler end plates following the occasion of an engine backfire upon start up. The placard should utilise letters of at least 3 millimetres in height and contain the following words: “If the engine backfires upon start-up, prior to further flight, inspect and replace (as necessary) all engine exhaust muffler end plates in accordance with AD/CESSNA 180/78 Amdt 2”.
Note 2: FAA AD 2000-02-14 Amdt 39-11532 refers and supersedes FAA AD 98-13-
10 Amdt 39-10598.
Compliance: 1. Unless previously accomplished; within 25 hours time-in-service (TIS) of the effective date of this Directive and thereafter at intervals not to exceed 25 hours TIS and, prior to flight following a reported engine backfire on engine start up.
2. Unless previously accomplished, prior to further flight if replacement is due to end plate cracking or within 12 calendar months time in service after the effective date of this directive. Remove placard from the instrument panel upon fitment of improved design muffler.
3. Within 5 days time in service after 13 July 2000.
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
This Amendment becomes effective on 13 July 2000.
Background: This directive was originally issued to address reports of cracks found in the engine exhaust muffler end plates of several Cessna Model 182S aircraft. The FAA determined that immediate AD action should be taken to detect and correct damage to the engine exhaust mufflers which could result in exhaust gases entering the aircraft with consequent crew and passenger injury.
Amendment 2 issued to provide terminating action for the muffler inspection and to remove the placard from the instrument panel on fitment of the improved muffler design.
Amendment 1 was issued to limit applicability to certain aeroplanes by serial number which have not yet been fitted with improved mufflers and to reflect the manufacturer’s revision of the requirement document.
Amendment 1 of this Airworthiness Directive became effective on 22 April 1999.
The original issue of this Airworthiness Directive became effective on 10 September 1998.
Eugene Paul Holzapfel
Delegate of the Civil Aviation Safety Authority 30 May 2000
The above AD is notified in the Commonwealth of Australia Gazette on 14 June 2000.
Overview
The Civil Aviation Regulations 1998, specifically Part 39, encompasses the legislative framework for ensuring airworthiness of aircraft in Australia. This legislation was enacted by the Australian Parliament to address the critical need for maintaining safety standards within the aviation industry. The problem it aimed to resolve includes ensuring that all aircraft meet stringent safety criteria to prevent accidents and ensure the safety of passengers, crew, and the general public. The Civil Aviation Safety Authority (CASA) is the delegated authority responsible for enforcing these regulations, with a clear policy objective of maintaining the highest safety standards through rigorous oversight and enforcement of airworthiness directives.
Scope and Application
The Airworthiness Directive (AD) AD/CESSNA 180/78 Amdt 2 pertains to a specific set of circumstances involving Cessna 182S aeroplanes, particularly those with serial numbers ranging from 18280001 to 18280286, and excludes those equipped with improved design engine exhaust mufflers P/N 1254017-19 or P/N 9954200-9. The directive, issued under the Civil Aviation Regulations 1998 by the Civil Aviation Safety Authority (CASA), mandates inspections and actions to mitigate the risk of exhaust system failure, which could otherwise result in injuries to crew and passengers. The directive outlines the necessity for inspections of the exhaust system for muffler end plate cracking, replacement of the exhaust mufflers with an improved design if necessary, and the installation of a placard in the cockpit to remind pilots to inspect the exhaust system after an engine backfire. Compliance with these requirements must occur within specified time intervals and conditions, such as within 25 hours of time-in-service from the effective date of the directive or after an engine backfire. The directive was amended to include terminating actions and to remove the placard once the improved design muffler is fitted. The scope of this legislation applies to the specified model of aeroplanes within Australian jurisdiction, with its applicability potentially extended or refined through subordinate instruments.
Key Provisions
The Civil Aviation Regulations 1998, as amended, include a specific airworthiness directive that applies to certain Cessna 180, 182, and Wren 460 series aeroplanes. The AD/CESSNA 180/78 Amdt 2, effective from 13 July 2000, mandates the inspection and replacement of exhaust system muffler end plates for specified model 182S aeroplanes (sections 1-3). This directive targets aircraft with serial numbers between 18280001 and 18280286, excluding those with improved design engine exhaust mufflers P/N 1254017-19 or P/N 9954200-9. Operators and owners of these aircraft are required to perform inspections in accordance with Cessna Single Engine Service Bulletin SB98-78-02 Revision 1, replace mufflers if cracked, and install a specific placard in the cockpit. The compliance timeline dictates inspections within 25 hours time-in-service (TIS) of the directive's effective date, and further inspections must occur at intervals not exceeding 25 hours TIS and before flight if an engine backfire occurs during start-up.
The obligations under this airworthiness directive include ensuring that the specified inspections and replacements are performed within the stipulated timeframes (section 4). Operators must adhere to the procedures outlined in the relevant service bulletins and ensure that the cockpit placard is installed correctly and remains visible during flight. Additionally, operators must ensure that the placard is removed once the improved design mufflers are installed. Failure to comply with these requirements can lead to safety risks, such as exhaust gases entering the aircraft, which could endanger the crew and passengers.
Non-compliance with the airworthiness directive can result in significant consequences. Although the specific penalties are not detailed in the provided text, non-compliance with airworthiness directives generally can lead to enforcement actions by the Civil Aviation Safety Authority (CASA). Such actions may include fines, suspension or revocation of airworthiness certificates, and other administrative penalties. Operators found in breach of these regulations could also face civil liability for any accidents or incidents resulting from non-compliance. The seriousness of the potential consequences underscores the importance of adhering to the directive's requirements.