<< >> NASA ASRS Report 712847, October 2006

MD80 experiences track deviation on cedar creek STAR to dfw when dietz intersection is lost during reprogramming of FMS.

Attributes
ACN	712847
Time
Date	200610
Local Time Of Day	0601 To 1200
Place
Locale Reference	intersection : tacke
State Reference	TX
Altitude	msl single value : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : d10.tracon tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	arrival star : cedar creek
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	712847
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	712683
Events
Anomaly	aircraft equipment problem : less severe non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued advisory controller : issued new clearance
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

Cedar creek arrival with runway 17C in FMS. On arrival between tacke intersection and dietz intersection approach advised us that runway 17C now closed and to plan on runway 17L. Entered 17L into FMS. Dietz intersection momentarily dropped off map display. Aircraft began to fly directly to hornz waypoint putting us slightly right of course. As we reentered dietz back into FMS; approach advised us that we were right of course and to turn to a heading of 330 degrees. This illustrates the importance of confirming any changes to the FMS between both pilots before executing. Remainder of flight uneventful and normal.

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Original NASA ASRS Text

Title: MD80 EXPERIENCES TRACK DEV ON CEDAR CREEK STAR TO DFW WHEN DIETZ INTXN IS LOST DURING REPROGRAMMING OF FMS.

Narrative: CEDAR CREEK ARR WITH RWY 17C IN FMS. ON ARR BTWN TACKE INTXN AND DIETZ INTXN APCH ADVISED US THAT RWY 17C NOW CLOSED AND TO PLAN ON RWY 17L. ENTERED 17L INTO FMS. DIETZ INTXN MOMENTARILY DROPPED OFF MAP DISPLAY. ACFT BEGAN TO FLY DIRECTLY TO HORNZ WAYPOINT PUTTING US SLIGHTLY R OF COURSE. AS WE REENTERED DIETZ BACK INTO FMS; APCH ADVISED US THAT WE WERE R OF COURSE AND TO TURN TO A HDG OF 330 DEGS. THIS ILLUSTRATES THE IMPORTANCE OF CONFIRMING ANY CHANGES TO THE FMS BTWN BOTH PLTS BEFORE EXECUTING. REMAINDER OF FLT UNEVENTFUL AND NORMAL.

Data retrieved from NASA's ASRS site as of January 2009 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.