B752 crew, on departure, intercepted wrong radial.

Attributes
ACN	496530
Time
Date	200012
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : stl.airport
State Reference	MO
Altitude	msl single value : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : t75.tracon
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : vacating altitude
Route In Use	departure sid : gatwy4.stl
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 700 flight time total : 4700 flight time type : 610
ASRS Report	496530
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Chart Or Publication Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were departing on the gateway 4 departure out of stl. The SID has 2 rtes, a radial off the st louis VOR and one off the csx VOR. Both lead to twila intersection and the remainder of the SID. We departed on runway 30 and were given radar vectors to an easterly heading and told to intercept the radial. We intercepted the radial off the csx VOR. The controller wanted us to intercept the radial out of the stl VOR. The course we took put us approximately 5 mi south of the stl radial. The controller asked if we missed the radial and gave us direct to twila intersection. No conflicts arose. The captain thought the controller said to intercept the stl radial and I think he just said intercept the radial. The FMC defaults to csx so that is what was in the FMC. This event didn't cause any problems, but I have heard of this happening in the past.

Original NASA ASRS Text

Title: B752 CREW, ON DEP, INTERCEPTED WRONG RADIAL.

Narrative: WE WERE DEPARTING ON THE GATEWAY 4 DEP OUT OF STL. THE SID HAS 2 RTES, A RADIAL OFF THE ST LOUIS VOR AND ONE OFF THE CSX VOR. BOTH LEAD TO TWILA INTXN AND THE REMAINDER OF THE SID. WE DEPARTED ON RWY 30 AND WERE GIVEN RADAR VECTORS TO AN EASTERLY HDG AND TOLD TO INTERCEPT THE RADIAL. WE INTERCEPTED THE RADIAL OFF THE CSX VOR. THE CTLR WANTED US TO INTERCEPT THE RADIAL OUT OF THE STL VOR. THE COURSE WE TOOK PUT US APPROX 5 MI S OF THE STL RADIAL. THE CTLR ASKED IF WE MISSED THE RADIAL AND GAVE US DIRECT TO TWILA INTXN. NO CONFLICTS AROSE. THE CAPT THOUGHT THE CTLR SAID TO INTERCEPT THE STL RADIAL AND I THINK HE JUST SAID INTERCEPT THE RADIAL. THE FMC DEFAULTS TO CSX SO THAT IS WHAT WAS IN THE FMC. THIS EVENT DIDN'T CAUSE ANY PROBS, BUT I HAVE HEARD OF THIS HAPPENING IN THE PAST.

Data retrieved from NASA's ASRS site as of July 2007 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.