Gv gulfstream flight crew has track heading deviation during departure from dal on the DALL8.TTT SID...

Attributes
ACN	694287
Time
Date	200604
Local Time Of Day	0601 To 1200
Place
Locale Reference	intersection : poten
State Reference	TX
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw.artcc tracon : d10.tracon
Operator	general aviation : corporate
Make Model Name	Gulfstream V
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : dall8
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 75 flight time total : 16200 flight time type : 150
ASRS Report	694287
Person 2
Affiliation	government : faa
Function	controller : departure
Events
Anomaly	non adherence : published procedure non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued advisory controller : issued new clearance flight crew : returned to original clearance
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Chart Or Publication Aircraft ATC Human Performance Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

ATC clearance: dall.8 SID; swb transition as filed. We were given several altitude and airspeed assignments while maintaining runway heading. When we were cleared to the first fix on the SID (clare) the fix was in our 9-10 O'clock position approximately 20 mi. We were at 250 KIAS assigned. The autoplt; LNAV; manual airspeed were engaged. The FMS was slow in acquiring clare and eventually steered the aircraft towards the fix. When the aircraft finally established on course; clare was behind us and poten; tekbe and swb were in front of us. We were given additional altitude and airspeed changes. ATC was very busy with many targets on the TCAS. The radio was cluttered with many xmissions being stepped on. During this time we noticed that there was an error in our ete and mileage to destination. I confirmed that we were on course with our fixes in front of us and asked that we wait until TOC to work out the discrepancy. I continued to monitor the traffic and the flight guidance panel. ATC asked us if we were proceeding towards tekbe and when I checked my FMS tekbe was no longer there and swb was in front of us. ATC asked us to turn 20 degrees left; we did and asked ATC if we should maintain the heading and we were told to direct tekbe. Tekbe was re-entered in the FMS and we proceeded on course.

Original NASA ASRS Text

Title: GV GULFSTREAM FLT CREW HAS TRACK HDG DEV DURING DEP FROM DAL ON THE DALL8.TTT SID.

Narrative: ATC CLRNC: DALL.8 SID; SWB TRANSITION AS FILED. WE WERE GIVEN SEVERAL ALT AND AIRSPD ASSIGNMENTS WHILE MAINTAINING RWY HDG. WHEN WE WERE CLRED TO THE FIRST FIX ON THE SID (CLARE) THE FIX WAS IN OUR 9-10 O'CLOCK POS APPROX 20 MI. WE WERE AT 250 KIAS ASSIGNED. THE AUTOPLT; LNAV; MANUAL AIRSPD WERE ENGAGED. THE FMS WAS SLOW IN ACQUIRING CLARE AND EVENTUALLY STEERED THE ACFT TOWARDS THE FIX. WHEN THE ACFT FINALLY ESTABLISHED ON COURSE; CLARE WAS BEHIND US AND POTEN; TEKBE AND SWB WERE IN FRONT OF US. WE WERE GIVEN ADDITIONAL ALT AND AIRSPD CHANGES. ATC WAS VERY BUSY WITH MANY TARGETS ON THE TCAS. THE RADIO WAS CLUTTERED WITH MANY XMISSIONS BEING STEPPED ON. DURING THIS TIME WE NOTICED THAT THERE WAS AN ERROR IN OUR ETE AND MILEAGE TO DEST. I CONFIRMED THAT WE WERE ON COURSE WITH OUR FIXES IN FRONT OF US AND ASKED THAT WE WAIT UNTIL TOC TO WORK OUT THE DISCREPANCY. I CONTINUED TO MONITOR THE TFC AND THE FLT GUIDANCE PANEL. ATC ASKED US IF WE WERE PROCEEDING TOWARDS TEKBE AND WHEN I CHKED MY FMS TEKBE WAS NO LONGER THERE AND SWB WAS IN FRONT OF US. ATC ASKED US TO TURN 20 DEGS L; WE DID AND ASKED ATC IF WE SHOULD MAINTAIN THE HDG AND WE WERE TOLD TO DIRECT TEKBE. TEKBE WAS RE-ENTERED IN THE FMS AND WE PROCEEDED ON COURSE.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.