Learjet first officer misreads las lynsy RNAV STAR causing a course deviation.

Attributes
ACN	567418
Time
Date	200212
Day	Tue
Place
Locale Reference	intersection : lynsy
State Reference	NV
Altitude	msl single value : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : l30.tracon
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	arrival star : lynsy 1
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 2500 flight time type : 1500
ASRS Report	567418
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure non adherence : clearance other spatial deviation
Independent Detector	atc equipment other atc equipment : radar other controllera
Resolutory Action	controller : issued advisory controller : issued new clearance flight crew : became reoriented
Consequence	faa : reviewed incident with flight crew faa : investigated
Supplementary
Problem Areas	Chart Or Publication Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were cleared for the lynsy 1 arrival into las for landing on runway 19R. Approach control switched us to a different arrival route for landing on runway 25L. At the time this occurred, we were navigating via FMS. After passing lynsy waypoint was the time at which we were reclred for runway 25L. I had to quickly reprogram the FMS for the correct route. I met with some technical problems at this point because our computer now had a route break. I had to consult the text description of the chart, which said 'runway 25L/right: thence utare....' the approach controller informed us that we should have been navigating to mirok waypoint, 14 mi south of utare. We were only 2 mi east of mirok when we turned the aircraft towards utare waypoint for the remainder of the arrival. We were being rushed over or just before mirok waypoint and we had to act quickly to go to the new routing. I was told to contact approach control and I explained the circumstances to the supervisor over the phone. That is the situation that we experienced. I would just like to add that the text description of the arrival is a little unclr. It says from over pgs VOR via 257 degree course to lynsy waypoint. Thence, runways 25L/right thence utare, thence dusto thence, fly heading 280 degrees expect radar vectors for ILS approach. For each runway there is an appropriate routing, but in the middle of the general description and the appropriate routing it says in small normal font print 'from lynsy waypoint thence, mirok' needs to be bolder face print so as not to be misread.

Original NASA ASRS Text

Title: LEARJET FO MISREADS LAS LYNSY RNAV STAR CAUSING A COURSE DEV.

Narrative: WE WERE CLRED FOR THE LYNSY 1 ARR INTO LAS FOR LNDG ON RWY 19R. APCH CTL SWITCHED US TO A DIFFERENT ARR RTE FOR LNDG ON RWY 25L. AT THE TIME THIS OCCURRED, WE WERE NAVING VIA FMS. AFTER PASSING LYNSY WAYPOINT WAS THE TIME AT WHICH WE WERE RECLRED FOR RWY 25L. I HAD TO QUICKLY REPROGRAM THE FMS FOR THE CORRECT RTE. I MET WITH SOME TECHNICAL PROBS AT THIS POINT BECAUSE OUR COMPUTER NOW HAD A RTE BREAK. I HAD TO CONSULT THE TEXT DESCRIPTION OF THE CHART, WHICH SAID 'RWY 25L/R: THENCE UTARE....' THE APCH CTLR INFORMED US THAT WE SHOULD HAVE BEEN NAVING TO MIROK WAYPOINT, 14 MI S OF UTARE. WE WERE ONLY 2 MI E OF MIROK WHEN WE TURNED THE ACFT TOWARDS UTARE WAYPOINT FOR THE REMAINDER OF THE ARR. WE WERE BEING RUSHED OVER OR JUST BEFORE MIROK WAYPOINT AND WE HAD TO ACT QUICKLY TO GO TO THE NEW ROUTING. I WAS TOLD TO CONTACT APCH CTL AND I EXPLAINED THE CIRCUMSTANCES TO THE SUPVR OVER THE PHONE. THAT IS THE SIT THAT WE EXPERIENCED. I WOULD JUST LIKE TO ADD THAT THE TEXT DESCRIPTION OF THE ARR IS A LITTLE UNCLR. IT SAYS FROM OVER PGS VOR VIA 257 DEG COURSE TO LYNSY WAYPOINT. THENCE, RWYS 25L/R THENCE UTARE, THENCE DUSTO THENCE, FLY HDG 280 DEGS EXPECT RADAR VECTORS FOR ILS APCH. FOR EACH RWY THERE IS AN APPROPRIATE ROUTING, BUT IN THE MIDDLE OF THE GENERAL DESCRIPTION AND THE APPROPRIATE ROUTING IT SAYS IN SMALL NORMAL FONT PRINT 'FROM LYNSY WAYPOINT THENCE, MIROK' NEEDS TO BE BOLDER FACE PRINT SO AS NOT TO BE MISREAD.

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.