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Air carrier X climb through occupied altitude in foreign airspace had less than standard separation from air carrier Y. System error.
| Attributes | |
| ACN | 289831 |
| Time | |
| Date | 199411 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : svmi |
| State Reference | FO |
| Altitude | msl bound lower : 31500 msl bound upper : 33000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : svzm |
| 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 : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| 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 : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 289831 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Miss Distance | horizontal : 18000 vertical : 1200 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
After departing svmi, at approximately 15 NM north of svmi, maiquetia cleared us direct to armur and climb to FL330. I believe we were climbing through FL315 when TCASII displayed traffic Y at our 12:30 position and 25 NM. TCASII showed traffic level 800 ft below our altitude. We continued our climb. Aircraft passed approximately 3 mi off our right side, 1200 ft below our altitude. Traffic sighted visually, type unknown. No TCASII TA or RA. None required. Just prior to traffic passing, maiquetia center instructed us to report level at FL330. We did not inform center of potential conflict. Due to our direct armur clearance, a slower climb than was accomplished could have been a problem. I don't think we were in radar contact.
Original NASA ASRS Text
Title: ACR X CLB THROUGH OCCUPIED ALT IN FOREIGN AIRSPACE HAD LTSS FROM ACR Y. SYS ERROR.
Narrative: AFTER DEPARTING SVMI, AT APPROX 15 NM N OF SVMI, MAIQUETIA CLRED US DIRECT TO ARMUR AND CLB TO FL330. I BELIEVE WE WERE CLBING THROUGH FL315 WHEN TCASII DISPLAYED TFC Y AT OUR 12:30 POS AND 25 NM. TCASII SHOWED TFC LEVEL 800 FT BELOW OUR ALT. WE CONTINUED OUR CLB. ACFT PASSED APPROX 3 MI OFF OUR R SIDE, 1200 FT BELOW OUR ALT. TFC SIGHTED VISUALLY, TYPE UNKNOWN. NO TCASII TA OR RA. NONE REQUIRED. JUST PRIOR TO TFC PASSING, MAIQUETIA CTR INSTRUCTED US TO RPT LEVEL AT FL330. WE DID NOT INFORM CTR OF POTENTIAL CONFLICT. DUE TO OUR DIRECT ARMUR CLRNC, A SLOWER CLB THAN WAS ACCOMPLISHED COULD HAVE BEEN A PROB. I DON'T THINK WE WERE IN RADAR CONTACT.
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.