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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Air carrier X had conflict with sailplane and 2 TCASII RA's with VFR aircraft. Evasive action climb. See and avoid concept.
| Attributes | |
| ACN | 316856 |
| Time | |
| Date | 199510 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : jot |
| State Reference | IL |
| Altitude | msl bound lower : 6000 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord tower : san |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Sail Plane |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 20000 flight time type : 6000 |
| ASRS Report | 316856 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | vertical : 6000 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
At 6000 ft, sailplane passed slightly below us approximately 5 mi northeast jot VOR. Then we climbed 600 ft to avoid second sailplane same location. While descending back, RA climb 300 ft to avoid light twin VFR. Another RA to climb to avoid 4TH aircraft which we never saw. Those sailplanes are a real nuisance! And no warning available from approach control. Callback conversation with reporter revealed the following information: procedures specialist at ord TRACON stated to his knowledge there is no concentrated sailplane activity in the area the report speaks to. This was probably an isolated incident.
Original NASA ASRS Text
Title: ACR X HAD CONFLICT WITH SAILPLANE AND 2 TCASII RA'S WITH VFR ACFT. EVASIVE ACTION CLB. SEE AND AVOID CONCEPT.
Narrative: AT 6000 FT, SAILPLANE PASSED SLIGHTLY BELOW US APPROX 5 MI NE JOT VOR. THEN WE CLBED 600 FT TO AVOID SECOND SAILPLANE SAME LOCATION. WHILE DSNDING BACK, RA CLB 300 FT TO AVOID LIGHT TWIN VFR. ANOTHER RA TO CLB TO AVOID 4TH ACFT WHICH WE NEVER SAW. THOSE SAILPLANES ARE A REAL NUISANCE! AND NO WARNING AVAILABLE FROM APCH CTL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: PROCS SPECIALIST AT ORD TRACON STATED TO HIS KNOWLEDGE THERE IS NO CONCENTRATED SAILPLANE ACTIVITY IN THE AREA THE RPT SPEAKS TO. THIS WAS PROBABLY AN ISOLATED INCIDENT.
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.