<< >> NASA ASRS Report 766766, December 2007

An air carrier first officer reports a track deviation on arrival to las following multiple route changes; including a late runway change.

Attributes
ACN	766766
Time
Date	200712
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : las.airport
State Reference	NV
Altitude	msl single value : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : l30.tracon
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival star : grnpa
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 105 flight time total : 15400 flight time type : 550
ASRS Report	766766
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : published procedure non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

During descent on the grnpa one RNAV arrival; PF (captain) was given a runway change. Captain immediately proceeded to runway 19R FAF; prematurely; and thus skipping past 2 required waypoints. Radar vectors were received from ATC to place aircraft on required course. Contributing factors during this route deviation was the quick manipulation of FMS controls without verifying changes with PNF (first officer). ATC gave numerous zigzag headings for spacing prior to this event. ATC also changed the initial starting fix (bryce canyon was changed to dove creek). This combination of route changes; radar vectors; and runway assignments made this a taxing event and extra vigilance was required during the descent.

Related reports:

• B737 on vectors for phx at 8000 ft is denied multiple WX dev...
• A300-600 flight crew experiences track deviation when multip...
• Track deviation air carrier medium large transport lined up ...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: AN ACR FO REPORTS A TRACK DEVIATION ON ARRIVAL TO LAS FOLLOWING MULTIPLE ROUTE CHANGES; INCLUDING A LATE RUNWAY CHANGE.

Narrative: DURING DSCNT ON THE GRNPA ONE RNAV ARR; PF (CAPT) WAS GIVEN A RWY CHANGE. CAPT IMMEDIATELY PROCEEDED TO RWY 19R FAF; PREMATURELY; AND THUS SKIPPING PAST 2 REQUIRED WAYPOINTS. RADAR VECTORS WERE RECEIVED FROM ATC TO PLACE ACFT ON REQUIRED COURSE. CONTRIBUTING FACTORS DURING THIS RTE DEV WAS THE QUICK MANIPULATION OF FMS CTLS WITHOUT VERIFYING CHANGES WITH PNF (FO). ATC GAVE NUMEROUS ZIGZAG HDGS FOR SPACING PRIOR TO THIS EVENT. ATC ALSO CHANGED THE INITIAL STARTING FIX (BRYCE CANYON WAS CHANGED TO DOVE CREEK). THIS COMBINATION OF RTE CHANGES; RADAR VECTORS; AND RWY ASSIGNMENTS MADE THIS A TAXING EVENT AND EXTRA VIGILANCE WAS REQUIRED DURING THE DSCNT.

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.