COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters
AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/Bell 206/148 and issues the following 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.
Applicability: Bell Helicopter Textron Canada (BHTC) Model 206A, 206B and 206L and Agusta- Bell AB206A and AB206B series helicopters, equipped with Eaton Tedeco Products B3188B and B4093 chip detector assemblies.
Requirement: 1. Unless already accomplished, verify and repair Tedeco chip detectors as follows:
- For Bell 206A and 206B helicopters - Perform a continuity test and temporary repair in accordance with BHTC Alert Service Bulletin (ASB) 206- 01-96 Revision A.
b. For Bell 206L helicopters - Perform a continuity test and temporary repair in accordance with BHTC ASB 206L-01-119, Revision A.
c. For Agusta-Bell AB206A and AB206B helicopters - Perform a continuity test and temporary repair in accordance with Agusta Mandatory Bollettino Tecnico 206-235.
2. Spare chip detector assemblies may not be installed on any helicopter unless they have been checked in accordance with the appropriate ASB or the Bollettino Tecnico.
3. If the chip detector assemblies are repaired in accordance with either Requirement 1.a., 1.b. or 1.c. replace them with new chip detectors.
Note: Transport Canada AD CF-2001-33 and Enac (Italy) AD 2001-401 refer.
Compliance: For Requirement 1 - Remains unchanged as “Within 60 days from the effective date of the original issue of this Directive”.
For Requirement 2 - As of the effective date of this Directive
For Requirement 3 - Remains unchanged as “Within 300 hours time in service after the repairs were effected, but no later than 31 March 2002”.
This Amendment becomes effective on 14 November 2001.
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
AD/BELL 206/148 Amdt 1 (Continued)
Background: Transport Canada has advised that BHTC has become aware that Tedeco B3188B and B4093 chip detectors installed on Model 206A, 206B and 206L Series helicopters could have poor or no continuity between the insert and the chip detector housing.
This could result in no chip indication when the chip detector has been bridged by metal particles.
The original issue of this Directive required a continuity test and temporary repair of the affected chip detectors and, if necessary, their replacement.
This amendment introduces the same requirements for AB206A and AB206B helicopters manufactured by Agusta.
The original issue of this Airworthiness Directive became effective on 17 October 2001.
Eugene Paul Holzapfel
Delegate of the Civil Aviation Safety Authority 1 November 2001
The above AD is notified in the Commonwealth of Australia Gazette on 14 November 2001.
Overview
The Civil Aviation Regulations 1998, amended in 2001, introduced Airworthiness Directive AD/Bell 206/148 to address safety concerns identified in certain Bell Helicopter Textron Canada (BHTC) and Agusta-Bell helicopters. This legislative instrument was enacted to ensure the safe operation of these aircraft by requiring specific maintenance actions on their chip detector assemblies. The directive was issued by the Civil Aviation Safety Authority (CASA) and was designed to address a potential safety issue where the chip detectors installed on the helicopters could have poor or no continuity, resulting in no chip indication when metal particles bridged the detectors. The policy objective was to mitigate any risk of in-flight failures that could compromise the safety of the aircraft and its occupants.
Scope and Application
This legislative instrument issued by the Civil Aviation Safety Authority (CASA) pertains specifically to the safety and airworthiness of Bell Helicopter Textron Canada (BHTC) Model 206A, 206B, and 206L, as well as Agusta-Bell AB206A and AB206B series helicopters that are equipped with Eaton Tedeco Products B3188B and B4093 chip detector assemblies. The primary aim of the Airworthiness Directive is to address and mitigate the risk of poor or no continuity between the chip detector and the housing, which could result in an absence of chip indication when the chip detector is bridged by metal particles. This defect poses a significant safety hazard, necessitating immediate and specific actions to be undertaken by operators and owners of the affected aircraft. Compliance with this directive is mandatory, and it extends across the Commonwealth of Australia, applying uniformly to all relevant aircraft within the jurisdiction. The directive mandates the verification and repair of the chip detectors as outlined in the requirement section, with specific timelines and procedures for compliance. Notably, this directive supersedes the previous AD/Bell 206/148, incorporating additional requirements for Agusta-Bell helicopters and ensuring a comprehensive approach to rectifying the identified safety issue.
Key Provisions
The Civil Aviation Regulations 1998 (CAR 1998) under PART 39 - 105, establishes specific Airworthiness Directives (ADs) to ensure the safety of aircraft and aeronautical products. This particular AD (AD/Bell 206/148 Amdt 1) focuses on the Bell Helicopter Textron Canada (BHTC) Model 206A, 206B, and 206L series and Agusta Bell AB206A and AB206B series helicopters equipped with Eaton Tedeco Products B3188B and B4093 chip detector assemblies. The directive mandates certain actions to rectify identified safety issues related to these chip detectors (section (a)). These actions must be carried out in accordance with the specified instructions (section (b)) and within the timeframe provided (section (c)).
The obligations imposed by this AD include the verification and repair of Tedeco chip detectors as per specific guidelines. For Bell 206A and 206B helicopters, the directive requires performing a continuity test and a temporary repair in line with BHTC Alert Service Bulletin (ASB) 206-01-96 Revision A. For Bell 206L helicopters, the required actions align with BHTC ASB 206L-01-119, Revision A. For Agusta-Bell AB206A and AB206B helicopters, the directive stipulates performing a continuity test and temporary repair according to Agusta Mandatory Bollettino Tecnico 206-235. Additionally, spare chip detector assemblies must be checked in accordance with the appropriate ASB or Bollettino Tecnico before installation. If the chip detectors are repaired, they must be replaced with new ones.
Failure to comply with the requirements of this AD may result in significant consequences. Although the AD does not explicitly state penalties, non-compliance with ADs generally falls under the broader regulatory framework of CAR 1998, which may lead to enforcement actions, fines, or other penalties. The AD mandates that Requirement 1 must be fulfilled within 60 days from its effective date, Requirement 2 must be complied with as of the effective date, and Requirement 3 must be completed within 300 hours after repairs are made but no later than 31 March 2002. Non-compliance could potentially compromise the airworthiness and safety of the helicopters involved.