|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||atc facility : slc|
airport : 36u
|Altitude||agl bound lower : 400|
agl bound upper : 400
|Operator||general aviation : personal|
|Make Model Name||Sail Plane|
|Flight Phase||climbout : intermediate altitude|
|Function||flight crew : single pilot|
|Qualification||pilot : private|
|Experience||flight time last 90 days : 35|
flight time total : 780
flight time type : 650
|Function||other personnel other|
|Anomaly||non adherence : far|
|Independent Detector||other other : unspecified|
|Resolutory Action||none taken : anomaly accepted|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||Pilot Deviation|
During ridge flying the aircraft stated was flying on mountain ridges using mixed thermal and ridge soaring technique. In order for this to be workable, descent below 500' AGL (11,800-900 MSL) was necessary. Upon returning to heber valley airport. I was notified that snowbird ski area had notified them of low flying gliders causing concern. Gliders often fly directly over and along ridges to make use of the lift and 2 other gliders of the same type were flying at the same or below altitude. All gliders involved (3 total) returned safely for landing at heber valley upon reaching sufficient altitude to clear intervening ridges and mountains. No further corrective action is felt necessary, except addressal of FAA of need of gliders to fly in attitudes, and altitudes in closer proximity to terrain than would normally be done in powered aircraft.
Original NASA ASRS Text
Title: GLIDER PLT AT TOO LOW AN ALT OVER SKI AREA.
Narrative: DURING RIDGE FLYING THE ACFT STATED WAS FLYING ON MOUNTAIN RIDGES USING MIXED THERMAL AND RIDGE SOARING TECHNIQUE. IN ORDER FOR THIS TO BE WORKABLE, DSCNT BELOW 500' AGL (11,800-900 MSL) WAS NECESSARY. UPON RETURNING TO HEBER VALLEY ARPT. I WAS NOTIFIED THAT SNOWBIRD SKI AREA HAD NOTIFIED THEM OF LOW FLYING GLIDERS CAUSING CONCERN. GLIDERS OFTEN FLY DIRECTLY OVER AND ALONG RIDGES TO MAKE USE OF THE LIFT AND 2 OTHER GLIDERS OF THE SAME TYPE WERE FLYING AT THE SAME OR BELOW ALT. ALL GLIDERS INVOLVED (3 TOTAL) RETURNED SAFELY FOR LNDG AT HEBER VALLEY UPON REACHING SUFFICIENT ALT TO CLEAR INTERVENING RIDGES AND MOUNTAINS. NO FURTHER CORRECTIVE ACTION IS FELT NECESSARY, EXCEPT ADDRESSAL OF FAA OF NEED OF GLIDERS TO FLY IN ATTITUDES, AND ALTS IN CLOSER PROX TO TERRAIN THAN WOULD NORMALLY BE DONE IN POWERED ACFT.
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.