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12/2/21 

AIM 

departure transition fixes or appropriate navigation 
aids for the altitude stratum within which the flight 
will be conducted. The use of normal preferred 
departure and arrival routes (DP/STAR), where 
established, is recommended. 

(d) 

File route structure transitions to and from 

the random route portion of the flight. 

(e) 

Define the random route by waypoints. 

File route description waypoints by using degree 
distance fixes based on navigational aids which are 
appropriate for the altitude stratum. 

(f) 

File a minimum of one route description 

waypoint for each ARTCC through whose area the 
random route will be flown. These waypoints must be 
located within 200 NM of the preceding center’s 
boundary. 

(g) 

File an additional route description 

waypoint for each turn point in the route. 

(h) 

Plan additional route description way-

points as required to ensure accurate navigation via 
the filed route of flight. Navigation is the pilot’s 
responsibility unless ATC assistance is requested. 

(i) 

Plan the route of flight so as to avoid 

prohibited and restricted airspace by 3 NM unless 
permission has been obtained to operate in that 
airspace and the appropriate ATC facilities are 
advised. 

NOTE

 

To be approved for use in the National Airspace System, 
RNAV equipment must meet system availability, accuracy, 
and airworthiness standards. For additional information 
and guidance on RNAV equipment requirements see 
Advisory Circular (AC) 20

138 Airworthiness Approval of 

Positioning and Navigation Systems and AC 90

100 U.S. 

Terminal and En Route Area Navigation (RNAV) 
Operations. 

3. 

Pilots of aircraft equipped with latitude/lon-

gitude coordinate navigation capability, independent 
of VOR/TACAN references, may file for random 
RNAV using the following procedures: 

(a) 

File airport

to

airport flight plans prior to 

departure. 

(b) 

File the appropriate RNAV capability 

certification suffix in the flight plan. 

(c) 

Plan the random route portion of the flight 

to begin and end over published departure/arrival 
transition fixes or appropriate navigation aids for 

airports without published transition procedures. The 
use of preferred departure and arrival routes, such as 
DP and STAR, where established, is recommended. 

(d) 

Plan the route of flight so as to avoid 

prohibited and restricted airspace by 3 NM unless 
permission has been obtained to operate in that 
airspace and the appropriate ATC facility is advised. 

(e) 

Define the route of flight after the 

departure fix, including each intermediate fix 
(turnpoint) and the arrival fix for the destination 
airport in terms of latitude/longitude coordinates 
plotted to the nearest minute or in terms of Navigation 
Reference System (NRS) waypoints. For latitude/ 
longitude filing the arrival fix must be identified by 
both the latitude/longitude coordinates and a fix 
identifier. 

EXAMPLE

 

MIA

1

 SRQ

2

 3407/10615

3

 3407/11546 TNP

4

 LAX

1

 Departure airport. 

2

 Departure fix. 

3

 Intermediate fix (turning point). 

4

 Arrival fix. 

5

 Destination airport. 

or 

ORD

1

 IOW

2

 KP49G

3

 KD34U

4

 KL16O

5

 OAL

6

 MOD2

SFO

1

 Departure airport. 

2

 Transition fix. 

3

 Minneapolis ARTCC waypoint. 

4

 Denver ARTCC Waypoint. 

5

 Los Angeles ARTCC waypoint. 

6

 Transition fix. 

7

 Arrival. 

8

 Destination airport. 

(f) 

Record latitude/longitude coordinates by 

two or four figures describing latitude in degrees 
followed by an N or S, followed by 3 or 5 digits 
longitude, followed by an E or W. Separate latitude 
and longitude with a solidus “/.” Use leading zeros if 
necessary. 

(g) 

File at FL 390 or above for the random 

RNAV portion of the flight. 

(h) 

Fly all routes/route segments on Great 

Circle tracks. 

(i) 

Make any inflight requests for random 

RNAV clearances or route amendments to an en route 
ATC facility. 

Preflight 

5

1

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