Flight deviated from assigned heading on departure.

Attributes
ACN	112159
Time
Date	198905
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : msp
State Reference	MN
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : msp tower : msp
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : initial climbout : intermediate altitude climbout : takeoff
Route In Use	departure other enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : commercial pilot : atp pilot : cfi
Experience	flight time last 90 days : 75 flight time total : 13200 flight time type : 1500
ASRS Report	112159
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
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 other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was in the right seat of the aircraft acting as the first officer. I read back a heading which was assigned to us by the tower after we were airborne. Shortly after that I was instructed by the captain to address a door open light which came on after we rotated. Consequently while my attention was directed toward the back of the aircraft I was unable to monitor the heading flown by the captain. Even though I read back 'left heading 105 degree' the captain misinterpreted it and flew a heading of 005 degree. Neither the tower nor departure control said anything about our erroneous turn until we were well established on a heading of 005 degree.

Original NASA ASRS Text

Title: FLT DEVIATED FROM ASSIGNED HEADING ON DEP.

Narrative: I WAS IN THE RIGHT SEAT OF THE ACFT ACTING AS THE F/O. I READ BACK A HDG WHICH WAS ASSIGNED TO US BY THE TWR AFTER WE WERE AIRBORNE. SHORTLY AFTER THAT I WAS INSTRUCTED BY THE CAPT TO ADDRESS A DOOR OPEN LIGHT WHICH CAME ON AFTER WE ROTATED. CONSEQUENTLY WHILE MY ATTN WAS DIRECTED TOWARD THE BACK OF THE ACFT I WAS UNABLE TO MONITOR THE HDG FLOWN BY THE CAPT. EVEN THOUGH I READ BACK 'LEFT HDG 105 DEG' THE CAPT MISINTERPRETED IT AND FLEW A HDG OF 005 DEG. NEITHER THE TWR NOR DEP CTL SAID ANYTHING ABOUT OUR ERRONEOUS TURN UNTIL WE WERE WELL ESTABLISHED ON A HDG OF 005 DEG.

Data retrieved from NASA's ASRS site as of August 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.