AD/SUPP/3 Amdt 2 - Breeze Hoists

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2006B07148 In force Legislative Instrument

Legislation content

 


Supplementary Equipment

 

AD/SUPP/3

Amdt 2


Breeze Hoists 3/92

 

Applicability: All Breeze BL 16600 series hoists installed in helicopters.

 

Requirement: 1. Deactivate hoist by pulling and locking the hoist control and cable cut circuit breakers so that inadvertent reset is not possible.

 

Note: Requirements 2 to 8 inclusive must be carried out with all electrical power removed from the aircraft.

 

2.    Clearly identify the polarity of the terminals and cables on the existing cable cut cartridge (i.e. +Ve and -Ve) so that correct connection is self evident.

 

3.    Replace the existing cartridge with alternative, low sensitivity cartridge P/N Y1265-2-1.

 

4.    For Bell 206A, 206B, 206B1, 206B111 and Agusta Bell 206B aircraft:

 

  1. Ensure the cable cut circuit shielding is correctly connected in accordance with Bell ASB 206-81-15 Rev A.

 

b.    Ensure the hoist is electrically grounded in accordance with Bell ASB 206-81- 15 Rev A.

 

c.    Ensure the earth wire on the cable cut switch introduced by AD/BELL 206/87 has been disconnected or removed.

 

d.    Replace existing cable cut single pole double throw switch with double pole double throw switch in accordance with Bell ASB 206-87-36 Rev A.

 

Note: Agusta ASB 206-180 also refers.

 

5.    For Bell 206L-1 and L-3 aircraft:

 

  1. Ensure that the cable cut circuit shielding is correctly connected as per Bell Helicopter Australia Drawing No 206-899-863B1 and rectify where necessary.

 

b.    Ensure the hoist is electrically grounded in accordance with Bell ASB 206L-81- 25.

 

c.    Replace existing cable cut single pole double throw switch with double pole double throw switch in accordance with Bell ASB 206L-87-46.

6.    For Bell 222 aircraft:

 

  1. Ensure the hoist is electrically grounded in accordance with Bell ASB 222-81-9.

 

b.    Remove the earth wire from the cable cut switch.

 

c.    Replace the existing single pole double throw cable cut switch with a double pole double throw switch in accordance with Bell ASB 222-86-38.

 

7.    For Hughes Helicopters:

  1. Inspect the cable cut circuit shielding to ensure that it is connected as per Hughes basic handbook of maintenance Group 10.
  2. Ensure hoist assembly is electrically bonded in accordance with AD/SUPP/16.
  1. For all other helicopter types ensure the cable cut circuit shielding is correctly connected, and ensure the hoist is electrically bonded in accordance with AD/SUPP/16.
  2. Verify the integrity of the hoist cable cut circuitry by testing as follows:
    1. Remove the positive (+Ve) wire from the cable cut cartridge and connect it to one lead of an ICI 1.8 metre Electric Fuse. Remove the cartridge negative

(-Ve) wire and connect it to the remaining fuse lead. This means that the Electric Fuse is now in the circuit, and the cable cut cartridge is disconnected from the system.

CAUTION: Do not allow the fuse connections to contact each other or any part of the aircraft structure.

 

b.    Reset the hoist control and cable cut circuit breakers, then with the aircraft engine running, all normal operational equipment selected, and using full rated hoist load:

 

  1. Ensure correct operation of the UP and DOWN limit switches;

 

2.    Inch the hoist a number of time (i.e. 10-12 times) in both directions; and

 

3.    Operate all radios and key all transmitters in the aircraft both in isolation and in combinations; operate all optional and non essential equipment in all likely combinations.

 

The ICI Electric Fuse MUST NOT fire during the above tests.

 

CAUTION: Before testing or firing the 1.8 metre ICI Electric Fuse ensure that no flammable vapours are present and that no person is within 1 metre of the fuse.

c.    Operate the cable cut switch and check that the ICI Electric Fuse has fired - The fuse should explode with a "sharp crack" similar to the igniting of a large match - Ensure that the cable cut switch is returned to the OFF position.

d.    Shut down the aircraft engine. Disconnect the ICI Electric Fuse leads, and reconnect the positive (+Ve) wire and negative (-Ve) wire to the cable cutter cartridge.

Note: ICI 1.8 metre Electric Fuses (Also known as "Match Head" fuses) are available in al capital cities at ICI Explosives Sales Offices.

 

Compliance: Requirement 1:

 

Before further flight after 6 March 1992. Requirements 2 to 8 (inclusive):

Before a Breeze BL 16600 series hoist can be reactivated for use. Requirement 9:

  1. Before a Breeze BL 16600 series hoist can be reactivated for use;

 

b.    After any modification to the aircraft which may affect the integrity of the cable cutter system; and/or

 

c.    After any electrical modification to the hoist system.

 

Following further investigation by Breeze, Bell and this Department, Amendment 2 to this Directive has been issued to:

 

  1. Ensure that all Breeze BL 16600 series hoists fitted to aircraft are disabled and not used unless both the hoist and the aircraft to which it is fitted comply with all applicable Requirements of this Directive; and

 

b.    Consolidate existing Requirements and introduce additional safety measures (summarized below) considered necessary to maximize the level of operational safety of the cable cut circuitry and thus restore user confidence in the cable cut system:

 

(i)       Ensure the cable cut circuit shielding is correctly connected;

 

(ii)     Ensure the component parts of the hoist are correctly bonded, and the hoist is correctly bonded to the aircraft.

 

(iii)  Introduce mandatory fitment of an alternative cable cut cartridge

P/N Y1262-2-1 which has a minimum "NO FIRE" current twice that of the present cartridge thus increasing the level of safety; and

(iv)   Replace the existing single pole double throw cable cut switch fitted to some aircraft with a double pole double throw switch. This new configuration has been shown under actual Bell Test Conditions, to provide a significant increase in the level of EMI tolerance and safety.

(v)     Amendment of the existing ICI Electric Fuse "no fire" test to provide for testing under simulated operating conditions using all likely radio equipment combinations. Because the ICI fuse is approximately 6 times more sensitive than the Y1265-2-1 explosive squib, this test should serve to demonstrate the EMI tolerance of the cable cut circuitry under actual operating conditions thus providing a basis for restored user confidence.

Overview

The Supplementary Equipment AD/SUPP/3 Amendment 2, specifically concerning Breeze Hoists, was enacted in 1992 to address safety issues related to the Breeze BL 16600 series hoists installed in helicopters. This legislative instrument was issued by the relevant regulatory body to ensure that all helicopters using these hoists comply with stringent safety requirements to prevent inadvertent resets and ensure the integrity of the cable cut circuitry. The primary policy objective of this amendment is to enhance the operational safety of the hoist systems by mandating specific modifications and safety measures, including deactivating the hoist, ensuring correct polarity identification, replacing the existing cartridge with a low sensitivity alternative, and adhering to specific grounding and bonding protocols for different helicopter models. Compliance with these requirements is essential before the hoist can be reactivated for use, after any modifications to the aircraft or electrical systems, thereby ensuring that all components function safely and reliably under operational conditions.

Scope and Application

The legislative instrument F2006B07148 pertains to the safety and operational requirements of Breeze BL 16600 series hoists installed in helicopters, specifically addressing the cable cut circuitry to prevent unintended reset and ensure safety. This directive applies to all Breeze BL 16600 series hoists installed in helicopters, mandating that operators deactivate the hoist by locking the hoist control and cable cut circuit breakers before further flight. Additionally, specific modifications and checks must be performed before reactivating the hoist for use, including the identification and replacement of cable cut cartridges, ensuring correct bonding and shielding of the cable cut circuitry, and conducting tests under simulated operating conditions. The instrument also stipulates compliance timelines, requiring certain actions to be completed before further flight and before reactivation after modifications. This legislation aims to enhance safety and restore user confidence by enforcing stringent checks and adherence to specified safety measures.

Key Provisions

The main operative sections of this legislative instrument (F2006B07148) outline specific requirements for the modification and safety testing of Breeze BL 16600 series hoists in certain helicopters, particularly focusing on the cable cut circuitry. Section 1 mandates deactivation of the hoist by locking the hoist control and cable cut circuit breakers to prevent inadvertent reset. Sections 2 to 8 detail specific modifications to be made with electrical power removed from the aircraft, including clearly identifying terminal polarity, replacing the existing cable cut cartridge with a low sensitivity alternative (P/N Y1265-2-1), and ensuring proper grounding and shielding of the cable cut circuit in accordance with manufacturer-specific maintenance manuals. For different helicopter models, specific wiring and bonding requirements are outlined, such as ensuring the hoist is electrically grounded and replacing single pole double throw switches with double pole double throw switches. Section 9 requires verification of the hoist's cable cut circuitry integrity through specific testing procedures involving an ICI 1.8 metre Electric Fuse, which must not fire during these tests. The obligations imposed by this Act on the parties it governs include ensuring compliance with the specified modifications and safety tests before reactivating the hoist for use. This entails following detailed procedures for deactivating the hoist, modifying the cable cut circuitry, and performing rigorous safety tests. Operators must adhere to these requirements before the hoist can be used again after modifications to the aircraft or the hoist system, or after any investigation that necessitates changes to the safety measures. The legislative instrument mandates strict adherence to the outlined steps to maintain operational safety and user confidence in the cable cut system. Any breach of the requirements stipulated in this Act could lead to significant consequences. Although the specific penalties for non-compliance are not detailed in the text, it is implied that failure to adhere to these safety measures could result in the hoist being deemed unsafe for operation, potentially leading to grounding of the aircraft. Such non-compliance could also result in civil or criminal liabilities if it leads to accidents or failures that harm personnel or property. The stringent nature of the requirements suggests that the penalties for non-compliance would be severe, reflecting the critical importance of these safety measures in preventing electrical failures and ensuring the safe operation of the hoists in helicopters.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.