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Wrong ILS frequency set in for approach. Visual check discovered error and aircraft returned on course for correct runway.
| Attributes | |
| ACN | 327600 |
| Time | |
| Date | 199602 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | OK |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord tower : ric |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 327600 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course none taken : detected after the fact other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Time XX35, ATC frequency, chicago. ATC facility, chicago approach. Location runway 27L approach at O'hare. We were given a vector for a base leg toward 2 parallel runways. Aircraft on the frequency were being given the left runway. I set up the left runway in the FMC and we waited to tune the localizer frequency until we received a runway assignment. We received a close turn to final for the left runway. During the turn the PNF tuned the frequency and put raw data on his screen. I armed the localizer when we were cleared for the approach. The FMC showed we were crossing final and the raw data was just starting to come across. I followed the raw data and looked out to visually find the runways. I saw another aircraft and turned back to the left. ATC gave us a vector back to the left and we flew the remaining approach and landed on the left runway. We later determined that the frequency for the right runway had been tuned in the localizer receiver.
Original NASA ASRS Text
Title: WRONG ILS FREQ SET IN FOR APCH. VISUAL CHK DISCOVERED ERROR AND ACFT RETURNED ON COURSE FOR CORRECT RWY.
Narrative: TIME XX35, ATC FREQ, CHICAGO. ATC FACILITY, CHICAGO APCH. LOCATION RWY 27L APCH AT O'HARE. WE WERE GIVEN A VECTOR FOR A BASE LEG TOWARD 2 PARALLEL RWYS. ACFT ON THE FREQ WERE BEING GIVEN THE L RWY. I SET UP THE L RWY IN THE FMC AND WE WAITED TO TUNE THE LOC FREQ UNTIL WE RECEIVED A RWY ASSIGNMENT. WE RECEIVED A CLOSE TURN TO FINAL FOR THE L RWY. DURING THE TURN THE PNF TUNED THE FREQ AND PUT RAW DATA ON HIS SCREEN. I ARMED THE LOC WHEN WE WERE CLRED FOR THE APCH. THE FMC SHOWED WE WERE XING FINAL AND THE RAW DATA WAS JUST STARTING TO COME ACROSS. I FOLLOWED THE RAW DATA AND LOOKED OUT TO VISUALLY FIND THE RWYS. I SAW ANOTHER ACFT AND TURNED BACK TO THE L. ATC GAVE US A VECTOR BACK TO THE L AND WE FLEW THE REMAINING APCH AND LANDED ON THE L RWY. WE LATER DETERMINED THAT THE FREQ FOR THE R RWY HAD BEEN TUNED IN THE LOC RECEIVER.
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.