A course deviation on the skebr RNAV 2 arrival to las, nv.

Attributes
ACN	572835
Time
Date	200302
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	intersection : skebr
State Reference	NV
Altitude	msl single value : 13000
Aircraft 1
Controlling Facilities	tracon : l30.tracon
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 25l other
Flight Phase	descent : approach
Route In Use	arrival star : skebr 2
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 175 flight time total : 14500
ASRS Report	572835
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 230 flight time total : 12000 flight time type : 10000
ASRS Report	572837
Events
Anomaly	aircraft equipment problem : less severe non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllerb
Resolutory Action	controller : issued new clearance
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Course deviation. Flying the skebr 2 arrival into las, the PF selected runway 25L as the landing runway on the CDU. Both pilots had verified the route was correct on the legs page. Shortly after crossing clarr intersection at 13000 ft and 250 KTS, ATC instructed us to fly the skebr 2 arrival for runway 25L except maintain 13000 ft. Shortly after passing skebr intersection, ATC notified us that we had apparently missed a turn on the arrival and to turn to a heading of 350 degrees and maintain 13000 ft. The controller also told us that there had been several company aircraft miss the turn to kepec after skebr. Once we were established on the ATC assigned heading, a review of the legs page on the CDU revealed that all waypoints on the skebr arrival had dropped out and the aircraft was proceeding directly from skebr to shand intersection on the runway 25L ILS. Upon landing, the captain called las TRACON and the controller told him that we had not caused a conflict and that apparently we had some sort of problem with our FMC database because of the number of company aircraft that had deviated from the arrival.

Original NASA ASRS Text

Title: A COURSE DEV ON THE SKEBR RNAV 2 ARR TO LAS, NV.

Narrative: COURSE DEV. FLYING THE SKEBR 2 ARR INTO LAS, THE PF SELECTED RWY 25L AS THE LNDG RWY ON THE CDU. BOTH PLTS HAD VERIFIED THE RTE WAS CORRECT ON THE LEGS PAGE. SHORTLY AFTER XING CLARR INTXN AT 13000 FT AND 250 KTS, ATC INSTRUCTED US TO FLY THE SKEBR 2 ARR FOR RWY 25L EXCEPT MAINTAIN 13000 FT. SHORTLY AFTER PASSING SKEBR INTXN, ATC NOTIFIED US THAT WE HAD APPARENTLY MISSED A TURN ON THE ARR AND TO TURN TO A HDG OF 350 DEGS AND MAINTAIN 13000 FT. THE CTLR ALSO TOLD US THAT THERE HAD BEEN SEVERAL COMPANY ACFT MISS THE TURN TO KEPEC AFTER SKEBR. ONCE WE WERE ESTABLISHED ON THE ATC ASSIGNED HDG, A REVIEW OF THE LEGS PAGE ON THE CDU REVEALED THAT ALL WAYPOINTS ON THE SKEBR ARR HAD DROPPED OUT AND THE ACFT WAS PROCEEDING DIRECTLY FROM SKEBR TO SHAND INTXN ON THE RWY 25L ILS. UPON LNDG, THE CAPT CALLED LAS TRACON AND THE CTLR TOLD HIM THAT WE HAD NOT CAUSED A CONFLICT AND THAT APPARENTLY WE HAD SOME SORT OF PROB WITH OUR FMC DATABASE BECAUSE OF THE NUMBER OF COMPANY ACFT THAT HAD DEVIATED FROM THE ARR.

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.