 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B737 flight crew in cruise at FL370 descended in response to a TCASII RA indicating same altitude opposite direction traffic. Shortly after ARTCC controller issued an immediate turn off course.
| Attributes | |
| ACN | 549527 |
| Time | |
| Date | 200206 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zid.artcc |
| State Reference | IN |
| Altitude | msl single value : 37000 |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| ASRS Report | 549527 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain |
| Events | |
| Anomaly | conflict : airborne critical non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas other controllera other flight crewa other flight crewb |
| Resolutory Action | controller : issued advisory controller : separated traffic flight crew : took precautionary avoidance action |
| Miss Distance | vertical : 0 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Just north of flm en route to rod at FL370, we received an RA due to another aircraft at the same altitude. We descended immediately in response to the RA. Soon after we responded, ATC issued us to immediately turn to a heading of 270 degrees. We told them we were descending due to an RA. We were then cleared to FL350. We were in IMC conditions at the time.
Original NASA ASRS Text
Title: B737 FLC IN CRUISE AT FL370 DSNDED IN RESPONSE TO A TCASII RA INDICATING SAME ALT OPPOSITE DIRECTION TFC. SHORTLY AFTER ARTCC CTLR ISSUED AN IMMEDIATE TURN OFF COURSE.
Narrative: JUST N OF FLM ENRTE TO ROD AT FL370, WE RECEIVED AN RA DUE TO ANOTHER ACFT AT THE SAME ALT. WE DSNDED IMMEDIATELY IN RESPONSE TO THE RA. SOON AFTER WE RESPONDED, ATC ISSUED US TO IMMEDIATELY TURN TO A HDG OF 270 DEGS. WE TOLD THEM WE WERE DSNDING DUE TO AN RA. WE WERE THEN CLRED TO FL350. WE WERE IN IMC CONDITIONS AT THE TIME.
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.