Some time ago, you studied the FAA’s charts and learned all of the symbology and the various altitude restrictions like MEA, MOCA, MCA, and probably MRA and others. But, if you’re like most of us, you’ve forgotten a lot of that. But, these altitudes are important. After all, if you go lower, you might hit something. Perhaps a review is in order.
ALTITUDE LIMITATIONS
Some time ago, you studied the FAAs charts and learned all of the symbology and the various altitude restrictions like MEA, MOCA, MCA, and probably MRA and others. But, if youre like most of us, youve forgotten a lot of that. But, these altitudes are important. After all, if you go lower, you might hit something. Perhaps a review is in order.
Key Takeaways:
- The FAA defines numerous minimum IFR altitudes (e.g., MEA, MOCA, MRA, MCA, MVA) to ensure obstacle clearance, adequate navigational signal coverage, and reliable communications during IFR flight operations.
- Each type of minimum altitude serves a specific operational purpose, such as for en-route segments, turns, holding patterns, or off-route obstruction clearance.
- Adhering to these altitudes, governed by regulations like Part 95 and 91.177, is critical for flight safety, especially in emergency situations like lost communications or when flying off-route.
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