(Refer to FAA-CT-8080-3F, Figure 91.) When flying a northbound IFR flight on V257, what is the minimum crossing altitude at DBS VORTAC?

Figure 91, En route low-altitude chart segment (DBS to BZN, V343): figure for "(Refer to FAA-CT-8080-3F, Figure 91.) When flying a northbound IFR flight on V257, what is the minimum crossin" — **How to read it:** Zoom into the airway the question names. Read the MEA/MOCA boxes along the airway, the VOR frequencies and the changeover points.

7,500 feet.

8,600 feet.✓ Correct Answer

11,100 feet.

Explanation

The flag at Dubois (DBS) VORTAC in Figure 91 indicates a minimum crossing altitude, and the MCA box beneath the DBS frequency box lists "V21-257 8600 N". So northbound aircraft on V257 must cross DBS at or above 8,600 feet. 7,500 is not listed, and 11,100 is the MCA at SABAT on V298.

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(Refer to FAA-CT-8080-3F, Figure 91.) When flying a northbound IFR flight on V257, what is the minimum crossing altitude at DBS VORTAC?

Explanation

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