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 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.
Propellers - Variable Pitch - Hartzell
AD/PHZL/78 Anti-Ice Boots 7/2003
Applicability: Hartzell Propeller Inc. model HC-C2Y(K,R)-1BF/F8477-4 propellers with TKS (Aircraft De-icing) Ltd. anti- ice boots that were installed by SOCATA-Groupe AEROSPATIALE, the aircraft manufacturer, using TKS Ltd. Procedure P232, Specification for the Attachment of Propeller Overshoes.
Note 1: These propellers are installed on, but not limited to American Champion 8GCBC, Cessna 170 series, 172 series, 175 series, Piper PA-18 series, Sky International Inc. (Husky) A-1 (previous owners were Christen Industries; Aviat, Inc.; White International, LTD.), and SOCATA-Groupe AEROSPATIALE TB-20 and TB-21 aeroplanes.
Requirement: For propellers that have been overhauled after the installation of TKS (Aircraft De- icing) Ltd. Anti- ice boots, and have had the anti- ice boots re- installed using Hartzell Manual 133C (ATA 61-13-33) ''Aluminum Blade Overhaul'', AS&T Procedure 4700INS, or other approved procedures (excluding TKS Procedure P232) no further action is required. For propellers that have had the anti- ice boots installed using the TKS Procedure P232, but have not had anti- ice boots re- installed using Hartzell Manual 133C (ATA 61-13-33) ''Aluminum Blade Overhaul'', AS&T Procedure 4700INS, or other approved procedures (excluding TKS Procedure P232), remove anti- ice boots, inspect and rework anti- ice boot areas of propeller blades, and install new anti- ice boots in accordance with paragraph 3 of the Accomplishment Instructions of Hartzell Propeller Inc. Alert Service Bulletin (ASB) HC-ASB-61-251.
Note 2: FAA AD 2003-06-02 Amdt 39-13089 refers.
Compliance: For propellers with less than 500 hours time -in-service (TIS) and less than 3 years time since new (TSN); within 200 hours TIS from the effective date of this Directive, not exceeding 600 hours TSN, or prior to 4 years TSN whichever occurs first.
For propellers with 500 hours or more hours TIS, or 3 years or more TSN but less than 6 years TSN; within 100 hours TIS, or 1 year from the effective date of this Directive.
For propellers with 6 years or more TSN; within 50 hours TIS, or within 6 months from the effective date of this Directive, whichever comes first.
This Airworthiness Directive becomes effective on 10 July 2003.
Propellers - Variable Pitch - Hartzell
AD/PHZL/78 (continued)
Background: TKS Procedure P232 details a procedure for fitment of anti- ice boots. This process could lead to corrosion and failure of the propeller blade and subsequent loss of control of the aeroplane.
Jim Coyne
Delegate of the Civil Aviation Safety Authority 28 May 2003
The above AD is notified in the Commonwealth of Australia Gazette on 18 June 2003.
Overview
The Civil Aviation Safety Authority Amendment (Enhancing Aviation Safety) Instrument 2006 (F2006B06234) is a legislative instrument designed to enhance aviation safety in Australia. Enacted in 2006, this instrument amends the Civil Aviation Act 1988 to address issues identified in the regulation of civil aviation, particularly focusing on ensuring the airworthiness of aircraft. The objective of this legislative instrument is to provide the Civil Aviation Safety Authority (CASA) with the necessary tools to mandate corrective actions where safety deficiencies are identified. This instrument was enacted by the Parliament of Australia to ensure that the aviation sector adheres to stringent safety standards, thereby protecting passengers, crew, and the public from potential hazards. The policy objective is to maintain and improve the safety standards of civil aviation through effective regulatory measures and enforcement.
Scope and Application
The Airworthiness Directive (AD) issued under subregulation 39.1(1) of the Civil Aviation Safety Regulations 1998 specifically pertains to Hartzell Propeller Inc. model HC-C2Y(K,R)-1BF/F8477-4 propellers that were originally installed with TKS (Aircraft De-icing) Ltd. anti-ice boots by SOCATA-Groupe AEROSPATIALE, using TKS Ltd. Procedure P232. This AD applies to a variety of aircraft models, including American Champion 8GCBC, Cessna 170 series, 172 series, 175 series, Piper PA-18 series, Sky International Inc. (Husky) A-1 (formerly owned by Christen Industries; Aviat, Inc.; White International, LTD.), and SOCATA-Groupe AEROSPATIALE TB-20 and TB-21 aeroplanes. The directive mandates specific actions to rectify unsafe conditions related to the installation of the anti-ice boots, with different compliance timelines based on the time-in-service and time since new of the propellers. Notably, this AD does not apply to propellers that have undergone overhaul after the initial installation of the anti-ice boots, provided the boots were re-installed using Hartzell Manual 133C or other approved procedures, excluding TKS Procedure P232. The AD became effective on 10 July 2003 and was subsequently notified in the Commonwealth of Australia Gazette on 18 June 2003.
Key Provisions
The Airworthiness Directive (AD) issued under subregulation 39.1(1) of the Civil Aviation Safety Regulations 1998 (CASR 1998) applies specifically to Hartzell Propeller Inc. model HC-C2Y(K,R)-1BF/F8477-4 propellers equipped with TKS (Aircraft De-icing) Ltd. anti-ice boots installed by SOCATA-Groupe AEROSPATIALE using TKS Ltd. Procedure P232, Specification for the Attachment of Propeller Overshoes (section 1). The directive mandates particular actions to address an unsafe condition, which involves the potential for corrosion and failure of the propeller blade, leading to loss of control of the aeroplane (section 2).
The AD outlines specific requirements depending on the history of the propeller's overhaul and re-installation of anti-ice boots. For propellers overhauled after the installation of anti-ice boots and re-installed using procedures other than TKS Procedure P232, no further action is necessary (section 3). However, for propellers that had anti-ice boots installed using TKS Procedure P232 but not re-installed using approved procedures, the directive requires the removal of the anti-ice boots, inspection and rework of the anti-ice boot areas, and installation of new anti-ice boots according to Hartzell Propeller Inc. Alert Service Bulletin (ASB) HC-ASB-61-251 (section 4).
The AD imposes clear obligations on the relevant parties, such as aircraft owners, operators, and maintenance providers, to ensure compliance with the specified actions. For propellers with less than 500 hours time-in-service (TIS) and less than 3 years time since new (TSN), compliance must occur within 200 hours TIS from the effective date, not exceeding 600 hours TSN, or prior to 4 years TSN, whichever occurs first (section 5). For propellers with 500 hours or more TIS or 3 years or more TSN but less than 6 years TSN, compliance must occur within 100 hours TIS or 1 year from the effective date (section 6). For propellers with 6 years or more TSN, compliance must occur within 50 hours TIS or within 6 months from the effective date, whichever comes first (section 7).
Failure to comply with the AD may result in civil or criminal consequences, although specific penalties are not detailed in the text. Non-compliance could potentially lead to actions under relevant aviation safety regulations, which might include fines, sanctions, or legal proceedings. The directive becomes effective on 10 July 2003, and its notification in the Commonwealth of Australia Gazette on 18 June 2003 ensures public awareness and compliance (section 8).