737 Flight Crew Operations Manual
Flight Management, Navigation -
Flight Management System
Operation
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11.31.14 D6-27370-866-EGP
Procedure Fix Waypoint Names
Marker beacons – a marker beacon is identified by the marker type identifier
followed by the runway number. Examples:
• Outer Marker 13R = OM13R
• Middle Marker 21 = MM21.
Runway–related fixes – waypoints located at unnamed runway–related fixes are
identified by adding a two–letter prefix to the runway number. The following list
is used to determine the appropriate prefix:
Examples: OM25L, MM09, IM23, RW04, RW18L.
For airports with more than one approach to the same runway, the two letter prefix
may change to allow different identifiers for the same waypoint. The first letter
identifies the type of fix and the second letter identifies the type approach as
follows:
Examples: CI32R, PV15, FN24L.
• RX – runway extension fix
• FA – VFR final approach fix
• CF – final approach course
fix
• FF – final approach fix
• IF – initial approach fix
• OM – outer marker
• MM – middle marker
• IM – inner marker
• BM – back course marker
• MD – minimum descent
altitude
• A – (+ an alpha) step down
fix
• RW – runway threshold
• MA – missed approach point
other than RW
• TD – touchdown point
inboard of RW.
• C( ) – final approach course
fix
• F( ) – final approach fix
• P( ) – missed approach point
• I( ) – initial approach fix
• D( ) – minimum descent
altitude
• T( ) – touch down point
• R( ) – runway centerline
intercept.
•()I – ILS
• ( )L – localizer only( )B –
backcourse ILS
• ( )D – VOR/DME
• ( )V – VOR only
• ( )S – VOR with DME points
•()N – NDB
• ( )Q – NDB with DME points
•()M – MLS
• ( )T – Tacan
•()R – RNAV.
September 15, 2016