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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Medium large transport climbing in departure control area received a TCASII RA on an unknown aircraft at 900 ft above him. Less than standard separation occurred.
| Attributes | |
| ACN | 259208 |
| Time | |
| Date | 199312 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bdl |
| State Reference | CT |
| Altitude | msl bound lower : 3500 msl bound upper : 4400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bdl |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Experience | controller radar : 6 |
| ASRS Report | 259208 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Miss Distance | vertical : 900 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Medium large transport vectored within coordinated climb area to avoid known traffic and given climb to 10000 ft. At 3500 ft medium large transport reported an RA and slowing climb, no traffic was observed. A few seconds later out of main bang a target with another sector's tag appeared indicating 4400 ft.
Original NASA ASRS Text
Title: MLG CLBING IN DEP CTL AREA RECEIVED A TCASII RA ON AN UNKNOWN ACFT AT 900 FT ABOVE HIM. LTSS OCCURRED.
Narrative: MLG VECTORED WITHIN COORDINATED CLB AREA TO AVOID KNOWN TFC AND GIVEN CLB TO 10000 FT. AT 3500 FT MLG RPTED AN RA AND SLOWING CLB, NO TFC WAS OBSERVED. A FEW SECONDS LATER OUT OF MAIN BANG A TARGET WITH ANOTHER SECTOR'S TAG APPEARED INDICATING 4400 FT.
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.