Heading track deviation occurs as flight crew misinterps ATC clearance and SID departure procedure.

Attributes
ACN	180135
Time
Date	199106
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : clt
State Reference	NC
Altitude	msl bound lower : 22000 msl bound upper : 22000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	departure other departure sid : sid enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : atp pilot : commercial pilot : flight engineer
Experience	flight time last 90 days : 255 flight time total : 18000 flight time type : 8000
ASRS Report	180130
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : instrument pilot : commercial
Experience	flight time last 90 days : 180 flight time total : 3900 flight time type : 1600
ASRS Report	180150
Events
Anomaly	non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other controllera
Resolutory Action	flight crew : became reoriented flight crew : returned to intended course or assigned course other
Consequence	Other Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Our filed flight routing read 'clt...robay...hmv...cvg...shb...ind.' when we picked up our clearance from clt clearance delivery. We received the following clearance and read it back in its entirety: 'cleared via the hornet 3 departure sadie transition, 8000', radar vectors to flm as filed...' on climb out over robay intersection, we turned toward hmv. Shortly thereafter ZTL questioned our route. He assumed we would go out to sadie before turning. As this is a newly worded departure, I told him that I would have the company work out a better or more easily understood canned routing.

Original NASA ASRS Text

Title: HEADING TRACK DEVIATION OCCURS AS FLT CREW MISINTERPS ATC CLRNC AND SID DEP PROC.

Narrative: OUR FILED FLT RTING READ 'CLT...ROBAY...HMV...CVG...SHB...IND.' WHEN WE PICKED UP OUR CLRNC FROM CLT CLRNC DELIVERY. WE RECEIVED THE FOLLOWING CLRNC AND READ IT BACK IN ITS ENTIRETY: 'CLRED VIA THE HORNET 3 DEP SADIE TRANSITION, 8000', RADAR VECTORS TO FLM AS FILED...' ON CLBOUT OVER ROBAY INTXN, WE TURNED TOWARD HMV. SHORTLY THEREAFTER ZTL QUESTIONED OUR RTE. HE ASSUMED WE WOULD GO OUT TO SADIE BEFORE TURNING. AS THIS IS A NEWLY WORDED DEP, I TOLD HIM THAT I WOULD HAVE THE COMPANY WORK OUT A BETTER OR MORE EASILY UNDERSTOOD CANNED RTING.

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.