Best Practices for Airport Obstruction Management Guidebook (2019) / Chapter Skim
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Pages 46-55
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From page 46... ...
46 Key Insights The collection and verification of obstruction data are critical elements of flight safety because they underlie the development of instrument flight procedures and updates to navigational data. Obstruction data collection methods and resources vary broadly based on the type and amount of data that need to be collected.
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From page 47... ...
Obstruction Data Collection and Resources 47 Obstruction Evaluation/Airport Airspace Analysis (OE/AAA) : FAA's electronic resource for submission and tracking of notices required under FAR Part 77.17 by the public and the FAA internal review coordination of the notices.
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48 Best Practices for Airport Obstruction Management Guidebook of these ACs should be considered during project development and serve as a reminder to key parties of the required tasks and deliverables. FAA AC 150/5300-16A: General Guidance and Specifications for Aeronautical Surveys: Establishment of Geodetic Control and Submission to the National Geodetic Survey FAA AC 150/5300-16A reviews requirements for geodetic control for aeronautical surveys.
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Obstruction Data Collection and Resources 49 implementation. The AC includes an example airport manager interview that provides a checklist of pertinent items.
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50 Best Practices for Airport Obstruction Management Guidebook The FAA requires independent verification and validation of airport safety data by the NGS or a designated representative. Field surveys are able to capture data more accurately than remote sensing; therefore, some airport features -- specifically, runway data and NAVAIDs -- require field survey accuracies.
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1Only when runway construction is involved. 2All 14 CFR Part 139 airports require 10 foot stations.
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52 Best Practices for Airport Obstruction Management Guidebook FAA DOF and Daily Digital Obstacle File (DDOF) The FAA's DOF and the DDOF contain all known obstacles (objects penetrating FAR Part 77 surfaces)
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Obstruction Data Collection and Resources 53 Master Record. The obstruction data collected for Form 5010 updates include information on impacts to airport FAR Part 77 surfaces.
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54 Best Practices for Airport Obstruction Management Guidebook For air carriers, comprehensive and up-to-date obstruction data are critical not only for the purposes of establishing the required margins of flight safety but also for operational and performance planning. As such, discrepancies in obstruction data or outdated data points (e.g., in data contained in the DOF)
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From page 55... ...
Obstruction Data Collection and Resources 55 4.2 Collection of Basic Obstruction Data by Airport Staff Basic survey tools such as a clinometer, an instrument used to measure the angle or elevation of slopes, and a hypsometer, an instrument for measuring object height or elevation, may enable airport staff to perform basic obstruction data collection. Using the data obtained with a clinometer and a hypsometer, airport staff can determine the height of the object above the runway end's elevation and confirm whether the object affects the imaginary surface in question.
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