 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Air carrier X TCASII TA RA. Had near midair collision less than standard separation from air carrier Y. System error.
| Attributes | |
| ACN | 311791 |
| Time | |
| Date | 199507 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : amg |
| State Reference | GA |
| Altitude | msl bound lower : 28000 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl |
| 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 other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 17500 flight time type : 600 |
| ASRS Report | 311791 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 18756 flight time type : 2400 |
| ASRS Report | 311797 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : nmac non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 200 vertical : 400 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Air carrier X initial TCASII 'traffic' alert came on with target at 9 mi in front of us converging, and 800 ft below and climbing. RA began at 400 ft below and climbing. Performed RA recommended climb. Advised ATC of climb and acquired visual contact with air carrier Y, a B727. Supplemental information from acn 311797: opposite direction traffic air carrier Y B727 climbing to FL290 through our altitude on J45. This happened at the dividing line between ZTL and ZJX.
Original NASA ASRS Text
Title: ACR X TCASII TA RA. HAD NMAC LTSS FROM ACR Y. SYS ERROR.
Narrative: ACR X INITIAL TCASII 'TFC' ALERT CAME ON WITH TARGET AT 9 MI IN FRONT OF US CONVERGING, AND 800 FT BELOW AND CLBING. RA BEGAN AT 400 FT BELOW AND CLBING. PERFORMED RA RECOMMENDED CLB. ADVISED ATC OF CLB AND ACQUIRED VISUAL CONTACT WITH ACR Y, A B727. SUPPLEMENTAL INFO FROM ACN 311797: OPPOSITE DIRECTION TFC ACR Y B727 CLBING TO FL290 THROUGH OUR ALT ON J45. THIS HAPPENED AT THE DIVIDING LINE BTWN ZTL AND ZJX.
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.