Aviation Major Hazard Standard - MIRMgate

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Major Hazard Standard MHS 03 - Aviation Standard documen Revision 3 issued 20 August 2001 ** Uncontrolled copy. Use latest revision ** I Specialised Role Aviation Services Introduction This appendix provides guidance on the preparation and management of specialised role aviation services. Such services require a level of training and flight management additional to that required for routine flight operations. These include: • aerial pipeline inspection patrols • aerial operations on pastoral stations including mustering • helicopter external lifting operations and winching When planning these operations, guidance should be obtained from WMC’s Aviation Consultants. Airborne geophysical surveys shall be conducted in accordance with the International Airborne Geophysics Safety Association (IAGSA) Safety Policy Manual. Only members of IAGSA shall conduct these surveys. Risk Evaluation Specialised aviation operations shall be subjected to a risk evaluation. This should involve the aircraft operator, the WMC representative coordinating the work, an aviation consultant appointed by WMC. and representatives of other groups that may be directly involved in the operation. The evaluation shall include but not be limited to : • Terrain relief and elevation • Aircraft type and performance • Aircrew experience and recency • Aircrew flight and duty times • Weather conditions, including operational weather limits • Identification of hazards associated with the operational procedures • Man made obstructions • Emergency response capability. The risk evaluation process should result in the adoption of control measures which will mitigate the risks to personnel involved in the operation. Operational Procedures Detailed operational procedures shall be prepared for any specialised role flying operation. These procedures should include but not be limited to the following areas: • Description of the scope of the work including specific WMC contract requirements • Roles and responsibilities of groups and individuals • Description of the area of operations including an area map showing local hazards • Aircraft performance, operating procedures, crewing and flight and duty times • Provision and management of ground support for the aircraft operation • Communications and flight following procedures • Emergency response including Search and Rescue procedures • Airstrips to be used and available within the area of operations • Safety and Health management Aircraft Performance and Crewing Operating parameters for the aircraft carrying out the work should be identified. Non-standard modifications to the aircraft are to be certified by the relevant aviation regulatory authority. Guidance should be obtained from WMC’s Aviation Consultants on the suitability of the aircraft for the work planned and the flight environment. In addition to regulatory minimum instrument standards and other equipment requirements of the WMC Aviation Standard, aircraft used for specialised roles requiring low level flying should have shoulder harnesses for all occupants, a clear, unscratched canopy and appropriate securing mechanisms for any additional instrumentation. Aircraft crewing for specialised operations varies with the nature of the operation, aircraft size and sophistication, the terrain overflown, the type of any additional equipment installed and the degree of monitoring required by that equipment. For low level operations and operations in mountainous terrain, pilots (and co-pilots where carried) should have successfully completed flight training programmes for both the special role and the particular flying environment. Crew experience requirements for specific specialised flying operations are provided in relevant sections of this Appendix. SAF-MHS-03 Rev. 03 Docs: 55221 Issued: 20/08/01 Page 23 of 29
Major Hazard Standard MHS 03 - Aviation Standard documen Revision 3 issued 20 August 2001 ** Uncontrolled copy. Use latest revision ** Flying Height and Airspeed Low level flying is inherently dangerous and the risks generally increase as the flying height is lowered. Aircraft engaged in low level operations shall be flown at the maximum clearance height possible consistent with the objectives of the work. The aircraft should not be flown at an airspeed below that which gives the minimum rate of descent in the event of an engine failure. During any transit flights to/from an operational area, the aircraft should be flown at an altitude considered to be a normal safe flying height for the aircraft and the area of operations. Area of Operations The geographical area and boundaries for the operations are to be identified including any special zones or areas relevant to the work. Climatic and topographical information should be provided. Particular attention should be given to obstacles and other hazards to flight operations. Large scale maps of the area should be provided. Where appropriate, community consultation should take place to inform the community of planned operations in the area. Such liaison should continue throughout the operations. Aircraft flown in low level operations should not be operated in close proximity to personnel on the ground. Prior to any low level operations, adequate safety margins and controls shall be established which minimise the hazards to personnel and property during such operations. Communications and Flight Following Effective and reliable communications should be established between the aircraft and any base camp supporting the aircraft for the duration of the activity. Where terrain or special equipment being used prevents constant radio contact, provision is to be made for ‘ops normal’ calls at prior agreed intervals. These are to be stipulated in the operational procedures, and should be preferably 30 minutes but not exceeding 45 minutes. A log shall be maintained at the base camp of all communications between the aircraft and the base. The log shall record all position reports, their time and the remaining aircraft endurance. Where a Flight Service is involved in the monitoring of the aircraft, liaison between the aircraft operator and the Flight Service responsible for the area should identify the intended area of operations, and methods by which position reports can be given. Details of any ground party supporting the operation, and methods by which they can be contacted, should be registered with Flight Service prior to the operation. Search and Rescue Coverage As part of the emergency response procedures, a search and rescue (SAR) plan is to be established and outlined in the operational procedures. Daily SAR briefings are to be given prior to any flying activity. The SAR plan is to incorporate the communications and flight following procedures adopted for the operation. Aircraft engaged in specialised operations are to be in radio contact with an appropriate organisation holding SAR responsibility. If a national service is not available, WMC or the aircraft operator is to assume that responsibility and ensure that appropriate resources are available to conduct an effective SAR response. Clothing Personnel in aircraft conducting low level specialised role flights, should wear clothing which offers protection against possible hazards and which is appropriate for the local conditions. It is recommended that the following be worn: • cotton or other non-synthetic garments • flying helmet meeting industry safety standards • robust shoes Specific Requirements for Airborne Pipeline Inspection Patrols Aircraft Aircraft used in pipeline inspection patrols may be either single engine or multi engine and shall: • be capable of safe operation at slow speeds at low altitudes • have high all round visibility capability • have serviceable wing strobe lights • shall display its landing lights during the inspection patrol SAF-MHS-03 Rev. 03 Docs: 55221 Issued: 20/08/01 Page 24 of 29
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Aviation Major Hazard Standard - MIRMgate

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