Air carrier medium large transport track heading deviation.

Attributes
ACN	190497
Time
Date	199109
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cyyz
State Reference	ON
Altitude	msl bound lower : 22000 msl bound upper : 22000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : cyyz
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 8700 flight time type : 800
ASRS Report	190497
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	190499
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Pilot Deviation

Narrative:

After departing cyyz, I was told to hold a 240 degree heading for the xqo 060 degree radial inbound. I remained in heading select instead of arming LNAV on the MCP. After crossing the 240 degree course into yqo, the first officer asked the controller if he wanted us to intercept the course. He said yes that is what we were cleared. We then intercepted the course. To prevent this misunderstanding the controller should state 'hold 240 degree heading to intercept the yqo 060 degree radial inbound', then flight plan route.

Original NASA ASRS Text

Title: ACR MLG TRACK HDG DEV.

Narrative: AFTER DEPARTING CYYZ, I WAS TOLD TO HOLD A 240 DEG HDG FOR THE XQO 060 DEG RADIAL INBOUND. I REMAINED IN HDG SELECT INSTEAD OF ARMING LNAV ON THE MCP. AFTER XING THE 240 DEG COURSE INTO YQO, THE FO ASKED THE CTLR IF HE WANTED US TO INTERCEPT THE COURSE. HE SAID YES THAT IS WHAT WE WERE CLRED. WE THEN INTERCEPTED THE COURSE. TO PREVENT THIS MISUNDERSTANDING THE CTLR SHOULD STATE 'HOLD 240 DEG HDG TO INTERCEPT THE YQO 060 DEG RADIAL INBOUND', THEN FLT PLAN RTE.

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.