 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
While in foreign airspace, an air carrier responded to a TCASII, which occurred with reaching less than applicable separation minima.
| Attributes | |
| ACN | 298092 |
| Time | |
| Date | 199502 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : men |
| State Reference | FO |
| Altitude | msl bound lower : 26000 msl bound upper : 26000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : samv |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | enroute airway : samv |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 298092 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| ASRS Report | 297279 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation non adherence : far |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 16000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
We were cleared from eze to scl at FL280. Mendoza control had then cleared us to FL260, and we were level at FL260, when the TCASII sounded with the following, 'descend-descend,' and we complied with that. The TCASII showed an airplane at about 1-2 O'clock, 2-3 mi away, at FL260, also. We were in visual contact with the airplane when we deviated. Mendoza control did not answer when we called, so we immediately called santiago approach on 119.7 and told them we had traffic at the same altitude. The other airplane was foreign air carrier, who had started out of eze after us and had been at FL350 until he descended down to our altitude at umkal intersection. We did see him come closer and closer, visually, and the TCASII showed the same thing up until the TCASII sent the message to descend. Supplemental information from acn 297279: we arrived at umkal intersection at FL260.
Original NASA ASRS Text
Title: WHILE IN FOREIGN AIRSPACE, AN ACR RESPONDED TO A TCASII, WHICH OCCURRED WITH REACHING LESS THAN APPLICABLE SEPARATION MINIMA.
Narrative: WE WERE CLRED FROM EZE TO SCL AT FL280. MENDOZA CTL HAD THEN CLRED US TO FL260, AND WE WERE LEVEL AT FL260, WHEN THE TCASII SOUNDED WITH THE FOLLOWING, 'DSND-DSND,' AND WE COMPLIED WITH THAT. THE TCASII SHOWED AN AIRPLANE AT ABOUT 1-2 O'CLOCK, 2-3 MI AWAY, AT FL260, ALSO. WE WERE IN VISUAL CONTACT WITH THE AIRPLANE WHEN WE DEVIATED. MENDOZA CTL DID NOT ANSWER WHEN WE CALLED, SO WE IMMEDIATELY CALLED SANTIAGO APCH ON 119.7 AND TOLD THEM WE HAD TFC AT THE SAME ALT. THE OTHER AIRPLANE WAS FOREIGN ACR, WHO HAD STARTED OUT OF EZE AFTER US AND HAD BEEN AT FL350 UNTIL HE DSNDED DOWN TO OUR ALT AT UMKAL INTXN. WE DID SEE HIM COME CLOSER AND CLOSER, VISUALLY, AND THE TCASII SHOWED THE SAME THING UP UNTIL THE TCASII SENT THE MESSAGE TO DSND. SUPPLEMENTAL INFO FROM ACN 297279: WE ARRIVED AT UMKAL INTXN AT FL260.
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.