Narrative:

Entering tex airport, a long left downwind for runway 27 approximately 5 NM west of airport, TCASII indicated a TA. Aircraft appeared to be climbing, opposite direction, into our path. We immediately climbed from 10700 ft MSL to 11500 ft MSL. Aircraft passed below and to the right of us. We never had visual contact. We had received no previous CTAF calls from this aircraft departing tex. The only CTAF call broadcast had been from a jet departing prior to this aircraft who had climbed through our altitude and above more than 5 NM ahead of us. The TA from the conflicting traffic appeared almost immediately prior to the warning as if the aircraft had not previously had its transponder on. We had made 3 previous CTAF calls: one prior reaching etl VOR, again passing coes VOR when queried by the previous outbound traffic and again at 10 DME from tex. Tex is a busy airport with a great deal of GA traffic. Furthermore, the population is hyper-sensitive to noise from aircraft. Consequently the arrival corridor and departure corridor is the same. Further, there is frequent glider traffic (same motorized) that rarely use their xponders and communicate on CTAF.

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Original NASA ASRS Text

Title: A BE1900 FLT CREW ENCOUNTERED A TCASII TA.

Narrative: ENTERING TEX ARPT, A LONG L DOWNWIND FOR RWY 27 APPROX 5 NM W OF ARPT, TCASII INDICATED A TA. ACFT APPEARED TO BE CLBING, OPPOSITE DIRECTION, INTO OUR PATH. WE IMMEDIATELY CLBED FROM 10700 FT MSL TO 11500 FT MSL. ACFT PASSED BELOW AND TO THE R OF US. WE NEVER HAD VISUAL CONTACT. WE HAD RECEIVED NO PREVIOUS CTAF CALLS FROM THIS ACFT DEPARTING TEX. THE ONLY CTAF CALL BROADCAST HAD BEEN FROM A JET DEPARTING PRIOR TO THIS ACFT WHO HAD CLBED THROUGH OUR ALT AND ABOVE MORE THAN 5 NM AHEAD OF US. THE TA FROM THE CONFLICTING TFC APPEARED ALMOST IMMEDIATELY PRIOR TO THE WARNING AS IF THE ACFT HAD NOT PREVIOUSLY HAD ITS XPONDER ON. WE HAD MADE 3 PREVIOUS CTAF CALLS: ONE PRIOR REACHING ETL VOR, AGAIN PASSING COES VOR WHEN QUERIED BY THE PREVIOUS OUTBOUND TFC AND AGAIN AT 10 DME FROM TEX. TEX IS A BUSY ARPT WITH A GREAT DEAL OF GA TFC. FURTHERMORE, THE POPULATION IS HYPER-SENSITIVE TO NOISE FROM ACFT. CONSEQUENTLY THE ARR CORRIDOR AND DEP CORRIDOR IS THE SAME. FURTHER, THERE IS FREQUENT GLIDER TFC (SAME MOTORIZED) THAT RARELY USE THEIR XPONDERS AND COMMUNICATE ON CTAF.

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.