Minimum Sector Altitude
From EUROCONTROL ATM Lexicon
| Link | Semantic Value |
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| Term | Minimum Sector Altitude |
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Abbreviation
MSA
Definition
The lowest altitude which may be used which will provide a minimum clearance of 300 metres (1000 feet) above all objects located in the area contained within a sector of a circle of 46 kilometres (25 nautical miles) radius centered on a radio navigation aid or waypoint.
Definition Source
Aeronautical Information Feature Data Dictionary (AIFDD)
adapted from ICAO (2010) Annex 10, Meteorological Service for International Air Navigation
