Non-precision approach

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Term non-precision approach
Status


Mandatory for


Contexts


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Synonyms


Related entries

precision approach

Broader term


Narrower term


Abbreviation

NPA

Definition

an instrument approach and landing which utilises lateral guidance but does not utilise vertical guidance. (ICAO Annex 6) For pilots of older aircraft, in which use of automated systems to assist in flying the approach is limited, a high degree of piloting skill is required to fly such approaches accurately and the frequent practice which many pilots need to achieve this can be difficult to come by if precision approaches are the normal method used

Definition Source

EASA (2013) European Aviation Safety Plan 2013-2016

Note

"Approaches made using barometric altitude, termed non-precision approaches, require a minimum descent altitude above the local terrain that ensures that there is no risk of collision with the terrain." source: ICAO (2006)PANS-OPS/II [Doc 8168/II]