Narrative:

We were on a heading of 070 passing 10;000 ft for 8;000 ft being vectored for a visual approach to runway 01R approximately 25 miles south of las vegas. We received a TCAS alert within two miles off our nose without an altitude. Both of us scanned in front of the aircraft; and after just a few seconds we saw a glider pass directly over us going left to right approximately 200 ft above our altitude. We immediately reported this to approach control but they seemed unconcerned. Approach said they had numerous reports of glider activity south of the field but never warned us of it. They said because the gliders were outside of the class B there was nothing they could do. We would have appreciated a heads up especially considering that the frequency was not busy at the time. We see many warnings on ATIS that do not materialize. More of an effort should be made to warn flight crews of potential threats if they are in progress.

Google
 

Original NASA ASRS Text

Title: B737 Flight Crew experiences a NMAC with a glider at 10000 feet 25 NM south of LAS during arrival. ATC was aware of the gliders in the area but did not inform the crew. A TCAS TA was the first indication of traffic with no altitude indication.

Narrative: We were on a heading of 070 passing 10;000 ft for 8;000 ft being vectored for a Visual Approach to Runway 01R approximately 25 miles south of Las Vegas. We received a TCAS alert within two miles off our nose without an altitude. Both of us scanned in front of the aircraft; and after just a few seconds we saw a glider pass directly over us going left to right approximately 200 ft above our altitude. We immediately reported this to Approach Control but they seemed unconcerned. Approach said they had numerous reports of glider activity south of the field but never warned us of it. They said because the gliders were outside of the Class B there was nothing they could do. We would have appreciated a heads up especially considering that the frequency was not busy at the time. We see many warnings on ATIS that do not materialize. More of an effort should be made to warn Flight Crews of potential threats if they are in progress.

Data retrieved from NASA's ASRS site 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.