AIM 

4/20/23 

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14.  Simultaneous Dependent Approaches 

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Simultaneous Approaches 

(Parallel Runways and Approach Courses) 

a. 

Simultaneous dependent approaches are an ATC procedure permitting approaches to airports having 

parallel runway centerlines separated by at least 2,500 feet up to 9,000 feet. Integral parts of a total system are 

ILS or other system providing approach navigation, radar, communications, ATC procedures, and required 

airborne equipment. RNAV equipment in the aircraft or GLS equipment on the ground and in the aircraft may 

replace the required airborne and ground based ILS equipment. Although non

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precision minimums may be 

published, pilots must only use those procedures specifically authorized by chart note. For example, the chart 

note “LNAV NA during simultaneous operations,” requires vertical guidance. When given a choice, pilots 

should always fly a precision approach whenever possible. 

b. 

A simultaneous dependent approach differs from a simultaneous independent approach in that, the 

minimum distance between parallel runway centerlines may be reduced; there is no requirement for radar 

monitoring or advisories; and a staggered separation of aircraft on the adjacent final course is required. 

Arrival Procedures

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