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Flight crew of a B727 responded briefly to the wrong call sign resulting in overshooting final during an ILS approach. The crew made an immediate correction after being alerted by TCASII RA.
| Attributes | |
| ACN | 391640 |
| Time | |
| Date | 199801 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 4000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | other : unknown |
| Flight Phase | descent : approach |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 391640 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Location dfw 180 degree radial 8 NM. On 90 degrees to ILS final in WX, we thought we heard our call sign xy to switch to tower frequency. First officer started switching frequencys. Didn't make sense to us to do so, went back to approach. It was an xz that had been sent over to tower. With that switch, we had a late turn to final on runway 35C. Overshooting, received a momentary RA from an aircraft lined up on runway 36L. Subsequently and rapidly, got back on the runway 35C localizer without incident. This situation had a momentary frequency stepped on with similar call signs on the parallel approachs (in WX).
Original NASA ASRS Text
Title: FLC OF A B727 RESPONDED BRIEFLY TO THE WRONG CALL SIGN RESULTING IN OVERSHOOTING FINAL DURING AN ILS APCH. THE CREW MADE AN IMMEDIATE CORRECTION AFTER BEING ALERTED BY TCASII RA.
Narrative: LOCATION DFW 180 DEG RADIAL 8 NM. ON 90 DEGS TO ILS FINAL IN WX, WE THOUGHT WE HEARD OUR CALL SIGN XY TO SWITCH TO TWR FREQ. FO STARTED SWITCHING FREQS. DIDN'T MAKE SENSE TO US TO DO SO, WENT BACK TO APCH. IT WAS AN XZ THAT HAD BEEN SENT OVER TO TWR. WITH THAT SWITCH, WE HAD A LATE TURN TO FINAL ON RWY 35C. OVERSHOOTING, RECEIVED A MOMENTARY RA FROM AN ACFT LINED UP ON RWY 36L. SUBSEQUENTLY AND RAPIDLY, GOT BACK ON THE RWY 35C LOC WITHOUT INCIDENT. THIS SIT HAD A MOMENTARY FREQ STEPPED ON WITH SIMILAR CALL SIGNS ON THE PARALLEL APCHS (IN WX).
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.