ED-285 Change 1 - Minimum Operational Performance Standard for offshore Helicopter Terrain Awareness and Warning System (HTAWS)

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Issued in May 2022.

ED-285 Change 1 Minimum Operating Performance Standards for Helicopter Terrain Awareness and Warning Systems (HTAWS) for Offshore Helicopter Operations will change a graphical error in Figure 3-9 to ensure that Alert Criteria – Caution number OHTAWS_REQ35. and OHTAWS_REQ36. are displayed correctly. The numbers on the graph appear differently than the lines on the graph defining the “May Alert” area.

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