 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Carj flight crew report to ARTCC controller a TCASII advisory while cruising at FL350 and ask if ATC has traffic that they should be aware of. The traffic ATC did have was sufficient distance away from the reporting aircraft, that it should not have activated.
| Attributes | |
| ACN | 542368 |
| Time | |
| Date | 200203 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : gqo.vortac |
| State Reference | TN |
| Altitude | msl single value : 33000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 200 ER&LR |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller limited radar : 20 controller military : 0 controller non radar : 20 controller radar : 20 controller supervisory : 0.25 |
| ASRS Report | 542368 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft ATC Human Performance |
| Primary Problem | Aircraft |
Narrative:
Sbound CRJ2 was level at FL330 and reported that his TCASII had activated with an advisory for an aircraft at 1 O'clock position and he asked if I had any traffic for him. I replied 'negative' and told him that the nearest aircraft was at his 2-3 O'clock position at 15 mi (and headed nebound, behind the sbound crj). The closest that the 2 aircraft were to each other would have been 13-15 mi. The pilots on the crj did not change course or altitude as a result of the alert.
Original NASA ASRS Text
Title: CARJ FLC RPT TO ARTCC CTLR A TCASII ADVISORY WHILE CRUISING AT FL350 AND ASK IF ATC HAS TFC THAT THEY SHOULD BE AWARE OF. THE TFC ATC DID HAVE WAS SUFFICIENT DISTANCE AWAY FROM THE RPTING ACFT, THAT IT SHOULD NOT HAVE ACTIVATED.
Narrative: SBOUND CRJ2 WAS LEVEL AT FL330 AND RPTED THAT HIS TCASII HAD ACTIVATED WITH AN ADVISORY FOR AN ACFT AT 1 O'CLOCK POS AND HE ASKED IF I HAD ANY TFC FOR HIM. I REPLIED 'NEGATIVE' AND TOLD HIM THAT THE NEAREST ACFT WAS AT HIS 2-3 O'CLOCK POS AT 15 MI (AND HEADED NEBOUND, BEHIND THE SBOUND CRJ). THE CLOSEST THAT THE 2 ACFT WERE TO EACH OTHER WOULD HAVE BEEN 13-15 MI. THE PLTS ON THE CRJ DID NOT CHANGE COURSE OR ALT AS A RESULT OF THE ALERT.
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.