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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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An air carrier B727 flight crew react properly to an RA from another aircraft at the same altitude and on a crossing airway. Apparently an error by tncf according to skec.
| Attributes | |
| ACN | 377404 |
| Time | |
| Date | 199708 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : mly |
| State Reference | FO |
| Altitude | msl bound lower : 31000 msl bound upper : 31500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : tncf artcc : skec |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | enroute : direct enroute airway : skec |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 9000 flight time type : 6000 |
| ASRS Report | 377404 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : flight engineer pilot : commercial |
| Experience | flight time last 90 days : 100 flight time total : 1000 flight time type : 100 |
| ASRS Report | 377547 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other flight crewa other other : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 18000 vertical : 1000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
Flying nwbound on UR640 close to position eriko (north 1408.0 - west 7408.0) FL310 at time XA47Z. After being clear by barranquilla center to switch to kingston center, we got a TA on the TCASII followed almost immediately by an RA telling us to climb. We climbed to FL315. We got a 'monitor vertical speed' followed by 'clear of conflict.' seconds later, we communicated back with barranquilla center as well as the other aircraft, a foreign air carrier, heading southwest on A319 at FL310. Upon discussing what had happened and our estimates with barranquilla center as well as the pilot of the foreign air carrier, the controller from barranquilla center complained that curacao control erred on the other air carrier's position report by 8 mins. (Also the pilot of the foreign air carrier told barranquilla center that the estimate they had was not what he gave to curacao center.) barranquilla center informed us that they are always having problems in getting the right estimates from curacao center. The pilot of the foreign air carrier flight told me that they got a TA followed by an RA to descend. They did. The system worked.
Original NASA ASRS Text
Title: AN ACR B727 FLC REACT PROPERLY TO AN RA FROM ANOTHER ACFT AT THE SAME ALT AND ON A XING AIRWAY. APPARENTLY AN ERROR BY TNCF ACCORDING TO SKEC.
Narrative: FLYING NWBOUND ON UR640 CLOSE TO POS ERIKO (N 1408.0 - W 7408.0) FL310 AT TIME XA47Z. AFTER BEING CLR BY BARRANQUILLA CTR TO SWITCH TO KINGSTON CTR, WE GOT A TA ON THE TCASII FOLLOWED ALMOST IMMEDIATELY BY AN RA TELLING US TO CLB. WE CLBED TO FL315. WE GOT A 'MONITOR VERT SPD' FOLLOWED BY 'CLR OF CONFLICT.' SECONDS LATER, WE COMMUNICATED BACK WITH BARRANQUILLA CTR AS WELL AS THE OTHER ACFT, A FOREIGN ACR, HDG SW ON A319 AT FL310. UPON DISCUSSING WHAT HAD HAPPENED AND OUR ESTIMATES WITH BARRANQUILLA CTR AS WELL AS THE PLT OF THE FOREIGN ACR, THE CTLR FROM BARRANQUILLA CTR COMPLAINED THAT CURACAO CTL ERRED ON THE OTHER ACR'S POS RPT BY 8 MINS. (ALSO THE PLT OF THE FOREIGN ACR TOLD BARRANQUILLA CTR THAT THE ESTIMATE THEY HAD WAS NOT WHAT HE GAVE TO CURACAO CTR.) BARRANQUILLA CTR INFORMED US THAT THEY ARE ALWAYS HAVING PROBS IN GETTING THE RIGHT ESTIMATES FROM CURACAO CTR. THE PLT OF THE FOREIGN ACR FLT TOLD ME THAT THEY GOT A TA FOLLOWED BY AN RA TO DSND. THEY DID. THE SYS WORKED.
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.