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HAC Oil & Gas IBP - Helicopter Association of Canada

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7. HELI-PADS (LZ)7.1 Detailed reference for Helpad construction can be found athttps://www.cagc.ca/_files/practices/pdf/Heliportable_BP.pdf<strong>Oil</strong> & <strong>Gas</strong> work is <strong>of</strong>ten executed in large forest areas where unprepared landing zones arerequired. Site selection, preparation and approval are crucial to safe helicopter operations.Factors such as slope <strong>of</strong> the terrain, approach, and departure obstacles and site surfaceconditions must be considered when selecting a site.Approximate helipad locations should be determined prior to starting work in the fieldHelipad(s) should be located on firm, level ground with consideration to helicopterapproach and departure angles and air movement (updrafts & downdrafts)Each helipad should have a unique numerical label (e.g. 123-456) indicating GPScoordinates for each location recorded. The GPS coordinate reference system shouldbe determined by the crew and crew manager prior to the commencement <strong>of</strong> anyground work, i.e. Lat/Long etc.Helipad sites (natural, existing or new cuts) should be constructed to accommodatethe largest size helicopter expected to be using the site. Due to the different sized lighthelicopters available and also the use <strong>of</strong> medium lift helicopters on a job site, it isstrongly recommended that an obstacle free area <strong>of</strong> 35m in diameter be cleared.A 35m diameter window in the tree canopy should be maintained to reflect the 35mdiameter at ground level.In order to facilitate the safe landing and take-<strong>of</strong>f <strong>of</strong> the helicopter and theaccess/egress <strong>of</strong> passengers, all woody materials must be cut and cleared to groundlevel in the central area <strong>of</strong> the helipad(s).The remaining area <strong>of</strong> the helipad will be cutand cleared to ensure that a tail rotor strike, damage to the helicopter fuselage, foreignobject damage, etc does not occur.If slope exceeds 5% or the ground is too s<strong>of</strong>t, log footing for the rear <strong>of</strong> the helicoptershould be provided. Log footing must be <strong>of</strong> adequate diameter, 4.5 m in length andshould be secured. Note: Ensure that securing stakes are below the top <strong>of</strong> the logs.If log cribbing is required, it should be designed in a manner that will support thehelicopter rear skid pads and the front skid tubes just behind the forward cross tube.No loose objects shall be left in a landing zone (clothing, garbage, tarps, etc.)All dangerous trees within one and one half lengths <strong>of</strong> a helipad should be identified,controlled and/or removed. Controlled danger trees are to be reported to crewmanagement and placed on the hazard list/map.THE PILOT HAS THE FINAL DECISION IN ACCEPTING OR REJECTING A LANDING ZONE.Before starting pad construction the crew should conduct a Job Hazard Assessment (JHA) and TailGate Meeting (TGM).OGC <strong>IBP</strong> | Revision Date: Sept 2009 DRAFT20

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