HDG DEV. INCOMPLETE FMS LOADING.

Narrative

ON LAS TO DFW FLT; FLT PLAN WAS FILED AS 'LAS; MEAD 8; BLD; TBC; J76 LVS; J58 AMA; BOIDS 4 DFW.' THIS RTE WAS LOADED IN FMS WITH NO TRANSITION FROM MEAD 8; JUST BLD DIRECT TBC. UPON RECEIPT OF PDC; THIS SAME FLT PLAN ROUTING WAS LISTED. HOWEVER; IN THE ATC CLRNC SECTION OF THE PDC 'MEAD 8; PGS; TBC; THEN AS FILED' WAS LISTED; WITH NO MENTION OF A TRANSITION. THE PGS WAYPOINT WAS INADVERTENTLY OVERLOOKED AND WAS NOT LOADED IN THE FMS. ON CLBOUT AFTER PASSING BLD WE TURNED DIRECT TO TBC. CLBING THROUGH APPROX 15000 FT; ZLA ASKED IF WE WERE FLYING THE PGS TRANSITION. WE REPLIED 'NO WE WERE GOING DIRECT TBC. CTR THAN GAVE US A 35 DEG R TURN TO 130 DEGS FOR TFC. 2-3 MINS LATER THEY RECLRED US DIRECT TBC. WE SAW NO TFC NOR DID WE HAVE ANY ON THE TCASII. THE POTENTIAL WAS THERE FOR A SERIOUS CONFLICT HOWEVER AND PROBABLY WOULD HAVE BEEN AVOIDED IF THE ATC CLRNC SECTION ON OUR PDC HAD INCLUDED THE WORD 'TRANSITION' IE; 'MEAD 8; PGS TRANSITION; DIRECT TBC; THEN AS FILED.' THIS IS HOW A 'LIVE' CTLR WOULD HAVE READ THE CLRNC TO US. IT WOULD HAVE MORE READILY GOTTEN OUR ATTN AND THE FMS WAYPOINT LOADED CORRECTLY SINCE THE TRANSITIONING FOR THIS SID IS IN OUR FMC DATABASE.