<< >> NASA ASRS Report 416590, October 1998

Air carrier crew deviates from cleared route after misreading pre departure clearance in ZLC airspace.

Attributes
ACN	416590
Time
Date	199810
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : slc
State Reference	UT
Altitude	msl bound lower : 23000 msl bound upper : 23000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zlc tracon : slc tower : teb
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Route In Use	enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : atp pilot : flight engineer pilot : commercial
Experience	flight time last 90 days : 210 flight time total : 13000 flight time type : 210
ASRS Report	416590
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After takeoff from slc, departure control gave us a 110 degree heading to intercept slc 094 degree radial eastbound. When we were xferred to ZLC frequency, I asked the controller if we could proceed RNAV on course. She approved our request and we made a southwest turn to our next filed fix which was hve. The controller asked us if our filed route of slc 094 degree radial to mtu was given to us by slc departure control. I said 'negative,' that our pre departure clearance showed direct to hve-dvc-lvs, etc. She then cleared us direct to ALS-cim-txo flight planned route. After re-examining our printed pre departure clearance, I noticed that I had mistakenly read our original routing of slc FFU3 hve dvc lvs...iah, which was printed below the proper ATC clearance of SLC094 MTU303 mtu hbu ALS cim txo...iah.

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Original NASA ASRS Text

Title: ACR CREW DEVIATES FROM CLRED RTE AFTER MISREADING PDC IN ZLC AIRSPACE.

Narrative: AFTER TKOF FROM SLC, DEP CTL GAVE US A 110 DEG HDG TO INTERCEPT SLC 094 DEG RADIAL EBOUND. WHEN WE WERE XFERRED TO ZLC FREQ, I ASKED THE CTLR IF WE COULD PROCEED RNAV ON COURSE. SHE APPROVED OUR REQUEST AND WE MADE A SW TURN TO OUR NEXT FILED FIX WHICH WAS HVE. THE CTLR ASKED US IF OUR FILED RTE OF SLC 094 DEG RADIAL TO MTU WAS GIVEN TO US BY SLC DEP CTL. I SAID 'NEGATIVE,' THAT OUR PDC SHOWED DIRECT TO HVE-DVC-LVS, ETC. SHE THEN CLRED US DIRECT TO ALS-CIM-TXO FLT PLANNED RTE. AFTER RE-EXAMINING OUR PRINTED PDC, I NOTICED THAT I HAD MISTAKENLY READ OUR ORIGINAL ROUTING OF SLC FFU3 HVE DVC LVS...IAH, WHICH WAS PRINTED BELOW THE PROPER ATC CLRNC OF SLC094 MTU303 MTU HBU ALS CIM TXO...IAH.

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.