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

Attributes
ACN	572587
Time
Date	200302
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	intersection : skebr
State Reference	NV
Altitude	msl single value : 13000
Environment
Light	Daylight
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	other
Flight Phase	descent : intermediate altitude
Route In Use	arrival star : skebr
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 225 flight time total : 20000 flight time type : 14000
ASRS Report	572587
Person 2
Affiliation	government : faa
Function	controller : approach
Events
Anomaly	aircraft equipment problem : less severe non adherence : clearance other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	controller : issued advisory
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Deviation from published arrival procedure. The skebr RNAV 2 arrival was programmed into the FMC while at the gate in lax. Runway 25L was entered while airborne, after passing misen, and fixes verified on the legs page. After passing skebr, ATC issued a heading of 340 degrees, and I looked down at the box to see the airplane flying skebr direct shand. It had dropped kepec, ipumy, povoc, and kimme. ATC stated that there was not a problem, but asked where we were headed after skebr. He informed us that 8 other company aircraft had done the same thing that same day, and asked me to call TRACON upon arrival. On the phone with the las TRACON supervisor, I was told that we were number 9 in a string of company deviations that day alone. No other carriers have had the problem. The supervisor had spoken with several of our capts that day and felt that the problem occurred when the FMC was programmed with the arrival runway while airborne. If programmed on the ground before departure, the box did not drop any fixes. No pilot's discretion were filed, but I was asked to pass the information on to the company. Although I seem to remember confirming the fixes after I programmed in the arrival runway, apparently I did not.

Original NASA ASRS Text

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

Narrative: DEV FROM PUBLISHED ARR PROC. THE SKEBR RNAV 2 ARR WAS PROGRAMMED INTO THE FMC WHILE AT THE GATE IN LAX. RWY 25L WAS ENTERED WHILE AIRBORNE, AFTER PASSING MISEN, AND FIXES VERIFIED ON THE LEGS PAGE. AFTER PASSING SKEBR, ATC ISSUED A HDG OF 340 DEGS, AND I LOOKED DOWN AT THE BOX TO SEE THE AIRPLANE FLYING SKEBR DIRECT SHAND. IT HAD DROPPED KEPEC, IPUMY, POVOC, AND KIMME. ATC STATED THAT THERE WAS NOT A PROB, BUT ASKED WHERE WE WERE HEADED AFTER SKEBR. HE INFORMED US THAT 8 OTHER COMPANY ACFT HAD DONE THE SAME THING THAT SAME DAY, AND ASKED ME TO CALL TRACON UPON ARR. ON THE PHONE WITH THE LAS TRACON SUPVR, I WAS TOLD THAT WE WERE NUMBER 9 IN A STRING OF COMPANY DEVS THAT DAY ALONE. NO OTHER CARRIERS HAVE HAD THE PROB. THE SUPVR HAD SPOKEN WITH SEVERAL OF OUR CAPTS THAT DAY AND FELT THAT THE PROB OCCURRED WHEN THE FMC WAS PROGRAMMED WITH THE ARR RWY WHILE AIRBORNE. IF PROGRAMMED ON THE GND BEFORE DEP, THE BOX DID NOT DROP ANY FIXES. NO PLT'S DISCRETION WERE FILED, BUT I WAS ASKED TO PASS THE INFO ON TO THE COMPANY. ALTHOUGH I SEEM TO REMEMBER CONFIRMING THE FIXES AFTER I PROGRAMMED IN THE ARR RWY, APPARENTLY I DID NOT.

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.