Pilot of MD80 on visual approach to las entered wrong ILS frequency. Noted discrepancy between the localizer and the visual and discovered the error.

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Attributes
ACN	593068
Time
Date	200309
Day	Sat
Place
Locale Reference	airport : las.airport
State Reference	NV
Altitude	msl bound lower : 3000 msl bound upper : 5000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tower : las.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	ils localizer & glide slope : 25r
Flight Phase	descent : approach
Route In Use	approach : instrument precision approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 18000 flight time type : 8000
ASRS Report	593068
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : ils other flight crewa
Resolutory Action	aircraft : automation overrode flight crew flight crew : overrode automation flight crew : returned to original clearance
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Cleared visual approach runway 25L las vegas. Sun was a big factor. Dialed in wrong ILS frequency (thought I had dialed in runway 25L, had runway 25R). Noticed on intercept I had overshot. Took off autoplt, re-engaged ILS mode still not realizing wrong frequency. Sun obstructed airport. 3 mi out, noticed we were lined up on runway 25R instead of runway 25L. Switched over and landed on the left. Tower did not notice.

Original NASA ASRS Text

Title: PLT OF MD80 ON VISUAL APCH TO LAS ENTERED WRONG ILS FREQ. NOTED DISCREPANCY BTWN THE LOC AND THE VISUAL AND DISCOVERED THE ERROR.

Narrative: CLRED VISUAL APCH RWY 25L LAS VEGAS. SUN WAS A BIG FACTOR. DIALED IN WRONG ILS FREQ (THOUGHT I HAD DIALED IN RWY 25L, HAD RWY 25R). NOTICED ON INTERCEPT I HAD OVERSHOT. TOOK OFF AUTOPLT, RE-ENGAGED ILS MODE STILL NOT REALIZING WRONG FREQ. SUN OBSTRUCTED ARPT. 3 MI OUT, NOTICED WE WERE LINED UP ON RWY 25R INSTEAD OF RWY 25L. SWITCHED OVER AND LANDED ON THE L. TWR DID NOT NOTICE.

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.