Disputed direction of turn on the texoma departure from dfw, tx.

Attributes
ACN	490717
Time
Date	200010
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : ttt.vor
State Reference	TX
Altitude	msl single value : 4000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : d10.tracon
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	climbout : initial
Route In Use	departure : on vectors departure sid : texoma. 7
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 70 flight time total : 14000 flight time type : 40
ASRS Report	490717
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer observation : company check pilot oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllerb
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	ATC Human Performance Chart Or Publication Flight Crew Human Performance
Primary Problem	ATC Human Performance

Narrative:

Departure runway 17R. On departure, assigned heading of 170 degrees. We were directed to turn right (I think) heading 350 degrees to intercept. We started a right turn. (I read back heading to controller stating 'understand right turn to 350 degrees.') after approximately 30 degrees of turn, the controller said, 'air carrier, I said left turn, turn left heading 350 degrees.' I recollect that he asked for a tight turn. We saw no conflict, and TCASII didn't indicate any aircraft close to us. We immediately executed a tight left turn. Performance: I was using an anr headset to help offset B727 noise problems. I believe I heard right turn and repeated 'understand right turn.' the PF was an air carrier line check captain (in right seat) and he also thought he heard right turn. The TEX7.fuz departure requires headings and expect vectors. If the SID, under 'jets takeoff broke down the runways into southerly runways, or individual runways ie, runway 17L/C/right fly heading 174 degrees (north vectors expect left turn) and runway 18L/right fly heading 174 degrees (north vector area expect right turn), then this would be more clear and predispose us towards the correct turn or question a turn given in the opposite direction.

Original NASA ASRS Text

Title: DISPUTED DIRECTION OF TURN ON THE TEXOMA DEP FROM DFW, TX.

Narrative: DEP RWY 17R. ON DEP, ASSIGNED HDG OF 170 DEGS. WE WERE DIRECTED TO TURN R (I THINK) HDG 350 DEGS TO INTERCEPT. WE STARTED A R TURN. (I READ BACK HDG TO CTLR STATING 'UNDERSTAND R TURN TO 350 DEGS.') AFTER APPROX 30 DEGS OF TURN, THE CTLR SAID, 'ACR, I SAID L TURN, TURN L HDG 350 DEGS.' I RECOLLECT THAT HE ASKED FOR A TIGHT TURN. WE SAW NO CONFLICT, AND TCASII DIDN'T INDICATE ANY ACFT CLOSE TO US. WE IMMEDIATELY EXECUTED A TIGHT L TURN. PERFORMANCE: I WAS USING AN ANR HEADSET TO HELP OFFSET B727 NOISE PROBS. I BELIEVE I HEARD R TURN AND REPEATED 'UNDERSTAND R TURN.' THE PF WAS AN ACR LINE CHK CAPT (IN R SEAT) AND HE ALSO THOUGHT HE HEARD R TURN. THE TEX7.FUZ DEP REQUIRES HDGS AND EXPECT VECTORS. IF THE SID, UNDER 'JETS TKOF BROKE DOWN THE RWYS INTO SOUTHERLY RWYS, OR INDIVIDUAL RWYS IE, RWY 17L/C/R FLY HDG 174 DEGS (N VECTORS EXPECT L TURN) AND RWY 18L/R FLY HDG 174 DEGS (N VECTOR AREA EXPECT R TURN), THEN THIS WOULD BE MORE CLR AND PREDISPOSE US TOWARDS THE CORRECT TURN OR QUESTION A TURN GIVEN IN THE OPPOSITE DIRECTION.

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.