Large transport flight crew tunes wrong ILS frequency and overshoots intercept of ILS.

Attributes
ACN	335591
Time
Date	199605
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dtw
State Reference	MI
Altitude	msl bound lower : 3500 msl bound upper : 3500
Environment
Flight Conditions	Marginal
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : dtw
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : cfi pilot : atp
Experience	flight time last 90 days : 100 flight time total : 12000 flight time type : 100
ASRS Report	335591
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	non adherence : far non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were expecting a visual approach to runway 21L at detroit and briefed accordingly. However, we were interrupted by a call from the flight attendants before we could read the approach checklist. As a result we read the approach checklist when descending below 10000 ft in IMC conditions and we were in a hurry. The incorrect ILS frequency was set and we didn't catch the error. The FMS map display showed runway 21L, but when the localizer didn't intercept we continued on our assigned heading until approach control asked which runway we were lined up with. We retuned the ILS and turned to intercept the runway 21L localizer. No more was said by ATC.

Original NASA ASRS Text

Title: LGT FLC TUNES WRONG ILS FREQ AND OVERSHOOTS INTERCEPT OF ILS.

Narrative: WE WERE EXPECTING A VISUAL APCH TO RWY 21L AT DETROIT AND BRIEFED ACCORDINGLY. HOWEVER, WE WERE INTERRUPTED BY A CALL FROM THE FLT ATTENDANTS BEFORE WE COULD READ THE APCH CHKLIST. AS A RESULT WE READ THE APCH CHKLIST WHEN DSNDING BELOW 10000 FT IN IMC CONDITIONS AND WE WERE IN A HURRY. THE INCORRECT ILS FREQ WAS SET AND WE DIDN'T CATCH THE ERROR. THE FMS MAP DISPLAY SHOWED RWY 21L, BUT WHEN THE LOC DIDN'T INTERCEPT WE CONTINUED ON OUR ASSIGNED HDG UNTIL APCH CTL ASKED WHICH RWY WE WERE LINED UP WITH. WE RETUNED THE ILS AND TURNED TO INTERCEPT THE RWY 21L LOC. NO MORE WAS SAID BY ATC.

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.