An air carrier B727 flight crew were given a last moment approach runway change by a harried controller and in their haste to comply the flight crew put the wrong ILS frequency in their navigation radios and has a potential conflict with another air carrier on a parallel approach.

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Attributes
ACN	367340
Time
Date	199704
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : atl
State Reference	GA
Altitude	msl bound lower : 4000 msl bound upper : 4000
Environment
Flight Conditions	Mixed
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : atl
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 150 flight time total : 4000 flight time type : 1500
ASRS Report	367340
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : far non adherence : clearance other spatial deviation
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

Northeast of atl being vectored for a visual approach to runway 26R we advised TRACON of our inability to see airport due to haze and sun. There was a lot of frequency congestion and other aircraft with the same problem of not being able to see the airport. The ILS to runway 26R was OTS. Without warning and without a frequency given we were cleared for the ILS to runway 26L sidestep to runway 26R. Our position was above the GS and fast. The other pilot then put the wrong frequency in our navigation radio. He put in 108.5 vice 108.7. This set us up for the ILS runway 27L. As we began to intercept the wrong localizer, we noticed a B737 below us and notified TRACON. TCASII gave us a TA. TRACON was not concerned about our position. Without the airport in sight we tracked well right of the localizer for spacing. TRACON then broke us out to the north for another approach to runway 26L. I noticed the frequency error. An uneventful approach and landing on runway 26L was made. Controller expectancy for our ability to accept a visual combined with high traffic and a cockpit error, were the root causes of this problem.

Original NASA ASRS Text

Title: AN ACR B727 FLC WERE GIVEN A LAST MOMENT APCH RWY CHANGE BY A HARRIED CTLR AND IN THEIR HASTE TO COMPLY THE FLC PUT THE WRONG ILS FREQ IN THEIR NAV RADIOS AND HAS A POTENTIAL CONFLICT WITH ANOTHER ACR ON A PARALLEL APCH.

Narrative: NE OF ATL BEING VECTORED FOR A VISUAL APCH TO RWY 26R WE ADVISED TRACON OF OUR INABILITY TO SEE ARPT DUE TO HAZE AND SUN. THERE WAS A LOT OF FREQ CONGESTION AND OTHER ACFT WITH THE SAME PROB OF NOT BEING ABLE TO SEE THE ARPT. THE ILS TO RWY 26R WAS OTS. WITHOUT WARNING AND WITHOUT A FREQ GIVEN WE WERE CLRED FOR THE ILS TO RWY 26L SIDESTEP TO RWY 26R. OUR POS WAS ABOVE THE GS AND FAST. THE OTHER PLT THEN PUT THE WRONG FREQ IN OUR NAV RADIO. HE PUT IN 108.5 VICE 108.7. THIS SET US UP FOR THE ILS RWY 27L. AS WE BEGAN TO INTERCEPT THE WRONG LOC, WE NOTICED A B737 BELOW US AND NOTIFIED TRACON. TCASII GAVE US A TA. TRACON WAS NOT CONCERNED ABOUT OUR POS. WITHOUT THE ARPT IN SIGHT WE TRACKED WELL R OF THE LOC FOR SPACING. TRACON THEN BROKE US OUT TO THE N FOR ANOTHER APCH TO RWY 26L. I NOTICED THE FREQ ERROR. AN UNEVENTFUL APCH AND LNDG ON RWY 26L WAS MADE. CTLR EXPECTANCY FOR OUR ABILITY TO ACCEPT A VISUAL COMBINED WITH HIGH TFC AND A COCKPIT ERROR, WERE THE ROOT CAUSES OF THIS PROB.

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.