|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : dfw|
|Altitude||agl bound lower : 0|
agl bound upper : 0
|Controlling Facilities||tracon : dfw|
|Operator||common carrier : air carrier|
|Make Model Name||Heavy Transport, Low Wing, 4 Turbojet Eng|
|Flight Phase||descent other|
|Affiliation||company : air carrier|
|Function||flight crew : first officer|
|Qualification||pilot : cfi|
pilot : commercial
pilot : instrument
pilot : flight engineer
|Experience||flight time last 90 days : 120|
flight time total : 7000
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Anomaly||altitude deviation : crossing restriction not met|
|Independent Detector||other controllera|
|Resolutory Action||none taken : detected after the fact|
|Consequence||faa : reviewed incident with flight crew|
|Primary Problem||ATC Human Performance|
|Air Traffic Incident||Pilot Deviation|
After landing at the dfw airport we were requested to contact the dfw TRACON supervisor. The captain did and was informed that we missed a clearance limit of boids intersection at 9000'. The supervisor informed the captain that the clearance was issued and acknowledged. None of the three crewmen on the flight deck (all of whom were wearing headsets) heard such clearance or acknowledgement. Callback conversation with reporter revealed the following information: reporter did not get a report from the captain who talked with the controller. Has heard that after the tapes were heard the controller elected to drop the incident. At no time were they given a vector or any other instructions reference a possible conflict. Feels it was more than likely a case where the readback was made by another aircraft. Had received no information that a similar callsign aircraft was on frequency.
Original NASA ASRS Text
Title: CROSSING RESTRICTION MISSED NOT ACKNOWLEDGED BY THE FLT CREW.
Narrative: AFTER LNDG AT THE DFW ARPT WE WERE REQUESTED TO CONTACT THE DFW TRACON SUPERVISOR. THE CAPT DID AND WAS INFORMED THAT WE MISSED A CLRNC LIMIT OF BOIDS INTERSECTION AT 9000'. THE SUPERVISOR INFORMED THE CAPT THAT THE CLRNC WAS ISSUED AND ACKNOWLEDGED. NONE OF THE THREE CREWMEN ON THE FLT DECK (ALL OF WHOM WERE WEARING HEADSETS) HEARD SUCH CLRNC OR ACKNOWLEDGEMENT. CALLBACK CONVERSATION WITH REPORTER REVEALED THE FOLLOWING INFORMATION: REPORTER DID NOT GET A REPORT FROM THE CAPT WHO TALKED WITH THE CTLR. HAS HEARD THAT AFTER THE TAPES WERE HEARD THE CTLR ELECTED TO DROP THE INCIDENT. AT NO TIME WERE THEY GIVEN A VECTOR OR ANY OTHER INSTRUCTIONS REFERENCE A POSSIBLE CONFLICT. FEELS IT WAS MORE THAN LIKELY A CASE WHERE THE READBACK WAS MADE BY ANOTHER ACFT. HAD RECEIVED NO INFORMATION THAT A SIMILAR CALLSIGN ACFT WAS ON FREQ.
Data retrieved from NASA's ASRS site as of August 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.