Narrative:

I was with a student flying a helicopter. We had taken off from our practice area in a southerly direction and had completed our crosswind turn and had just established ourselves on the downwind leg; following the route of flight as established in our standard operations procedures. The practice area is within the alliance class D airspace; about 3.5 mile north east of alliance airport. We were at our prescribed altitude of 1;400 ft MSL; again as established in our agreements. In addition to myself in our training area there were two other helicopters. I happened to glance to my right and I noticed a small corporate jet below me and to my right in a left bank; apparently starting his base leg. I immediately took control of the helicopter from my student and did a fairly aggressive deceleration. This allowed me to gain more altitude; the jet passed slightly in front and below us. As I did this maneuver another pilot who was flying a training flight in our practice area yelled over the radio 'watch out; watch out!' the jet continued on his flight and seemed to climb slightly on his base leg. One of the other instructor pilots changed frequency to alliance tower and informed the tower and the pilots of the jet that 'they had nearly run over a helicopter' or words to that effect. The jet pilot was heard to reply 'yeah...vice versa' I have the habit of listening to alliance tower on my second radio as they will often give us traffic reports. In this instance I did not hear or register the conversation between the jet and alliance tower. In total 6 helicopter pilots and two ground personnel witnessed the incident.

Related reports:

Google
 

Original NASA ASRS Text

Title: A helicopter pilot in an AFW training area reported a NMAC with a corporate jet landing at AFW after the jet flew through the helicopter training pattern.

Narrative: I was with a student flying a helicopter. We had taken off from our practice area in a southerly direction and had completed our crosswind turn and had just established ourselves on the downwind leg; following the route of flight as established in our Standard Operations Procedures. The practice area is within the Alliance Class D airspace; about 3.5 mile north east of Alliance Airport. We were at our prescribed altitude of 1;400 FT MSL; again as established in our agreements. In addition to myself in our training area there were two other helicopters. I happened to glance to my right and I noticed a small corporate jet below me and to my right in a left bank; apparently starting his base leg. I immediately took control of the helicopter from my student and did a fairly aggressive deceleration. This allowed me to gain more altitude; the jet passed slightly in front and below us. As I did this maneuver another pilot who was flying a training flight in our practice area yelled over the radio 'watch out; watch out!' The jet continued on his flight and seemed to climb slightly on his base leg. One of the other instructor pilots changed frequency to Alliance Tower and informed the Tower and the pilots of the jet that 'they had nearly run over a helicopter' or words to that effect. The jet pilot was heard to reply 'yeah...vice versa' I have the habit of listening to Alliance Tower on my second radio as they will often give us traffic reports. In this instance I did not hear or register the conversation between the jet and Alliance Tower. In total 6 helicopter pilots and two ground personnel witnessed the incident.

Data retrieved from NASA's ASRS site as of April 2012 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.