Track deviation caused by flying the flight plan route instead of the pre departure clearance.

Attributes
ACN	301381
Time
Date	199504
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dfw
State Reference	TX
Altitude	msl bound lower : 23000 msl bound upper : 23000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
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 : atp
Experience	flight time last 90 days : 150 flight time total : 10000 flight time type : 2500
ASRS Report	301381
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 150 flight time total : 8000 flight time type : 3000
ASRS Report	301225
Events
Anomaly	non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : became reoriented other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

On dallas 9 departure we attempted to intercept the original flight plan transition radial. Center controller questioned our routing and departure control clearance. We then realized that our pre departure clearance was different than our flight plan route. Center then gave us a heading to the proper route. This navigation error occurred because both pilots missed the change of 1 NAVAID identify on the pre departure clearance. The SID and STAR were identical. Supplemental information from acn 301225: the incident was caused by inattn to detail and the similarity in text of the filed and pre departure clearance route text. Prevention of this occurrence may be accomplished by changing procedure for format of pre departure clearance or by requiring crew to call clearance delivery for a revised clearance when filed routing has changed.

Original NASA ASRS Text

Title: TRACK DEV CAUSED BY FLYING THE FLT PLAN RTE INSTEAD OF THE PDC.

Narrative: ON DALLAS 9 DEP WE ATTEMPTED TO INTERCEPT THE ORIGINAL FLT PLAN TRANSITION RADIAL. CTR CTLR QUESTIONED OUR ROUTING AND DEP CTL CLRNC. WE THEN REALIZED THAT OUR PDC WAS DIFFERENT THAN OUR FLT PLAN RTE. CTR THEN GAVE US A HDG TO THE PROPER RTE. THIS NAV ERROR OCCURRED BECAUSE BOTH PLTS MISSED THE CHANGE OF 1 NAVAID IDENT ON THE PDC. THE SID AND STAR WERE IDENTICAL. SUPPLEMENTAL INFO FROM ACN 301225: THE INCIDENT WAS CAUSED BY INATTN TO DETAIL AND THE SIMILARITY IN TEXT OF THE FILED AND PDC RTE TEXT. PREVENTION OF THIS OCCURRENCE MAY BE ACCOMPLISHED BY CHANGING PROC FOR FORMAT OF PDC OR BY REQUIRING CREW TO CALL CLRNC DELIVERY FOR A REVISED CLRNC WHEN FILED ROUTING HAS CHANGED.

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.