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What is the maximum bearing error allowed for an operational VOR equipment check using an FAA approved ground test signal?

  1. 2 degrees

  2. 4 degrees

  3. 6 degrees

  4. 3 degrees

The correct answer is: 4 degrees

For an operational VOR (VHF Omni-directional Range) equipment check using an FAA approved ground test signal, the maximum bearing error allowed is 4 degrees. This standard is established to ensure the accuracy and reliability of navigation using VOR systems. Maintaining this level of precision is critical for safe aircraft operation, as VOR is one of the primary navigation aids used by pilots. In the context of this question, a bearing error of no more than 4 degrees allows for a reasonable margin of accuracy, which is essential for performance compliance and safety in aviation. Exceeding this error might indicate a potential malfunction or misalignment of the VOR equipment, which could adversely affect navigation accuracy during flight. This standard reflects the FAA's commitment to maintaining high levels of safety and operational integrity in aviation navigation systems.