B737 crew on SID 12 mi from sea was advised by S46 departure controller that he had instructed the flight to proceed direct just after takeoff.

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Attributes
ACN	581476
Time
Date	200305
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : sea.vortac
State Reference	WA
Altitude	msl single value : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : s46.tracon
Operator	common carrier : air carrier
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	climbout : vacating altitude climbout : intermediate altitude climbout : initial
Route In Use	departure sid : summa
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp pilot : multi engine
Experience	flight time last 90 days : 150 flight time total : 18000 flight time type : 3000
ASRS Report	581476
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued advisory controller : issued new clearance flight crew : returned to intended or assigned course
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	ATC Human Performance

Narrative:

While established on a 070 degree heading, per the summa-6 SID, departure control asked us 'what is your direction of flight?' we replied that we were flying the summa-6. Departure then stated that he had cleared us 'right turn, direct summa' about 12 mi ago. We did not receive nor acknowledge such clearance. As far as I know, no loss of separation occurred.

Original NASA ASRS Text

Title: B737 CREW ON SID 12 MI FROM SEA WAS ADVISED BY S46 DEP CTLR THAT HE HAD INSTRUCTED THE FLT TO PROCEED DIRECT JUST AFTER TKOF.

Narrative: WHILE ESTABLISHED ON A 070 DEG HDG, PER THE SUMMA-6 SID, DEP CTL ASKED US 'WHAT IS YOUR DIRECTION OF FLT?' WE REPLIED THAT WE WERE FLYING THE SUMMA-6. DEP THEN STATED THAT HE HAD CLRED US 'R TURN, DIRECT SUMMA' ABOUT 12 MI AGO. WE DID NOT RECEIVE NOR ACKNOWLEDGE SUCH CLRNC. AS FAR AS I KNOW, NO LOSS OF SEPARATION OCCURRED.

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.