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Air carrier X TCASII TA RA descent through occupied altitude had conflict with widebody transport. Pilot deviation.
| Attributes | |
| ACN | 245177 |
| Time | |
| Date | 199306 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : sju |
| State Reference | PR |
| Altitude | msl bound lower : 10000 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | enroute : direct enroute airway : sju |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 9000 flight time type : 2500 |
| ASRS Report | 245177 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : undershoot conflict : airborne less severe non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 18000 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Air carrier X while descending into sju, approach control cleared us to descend to 8000 ft. While descending through 11000 ft we got a TCASII TA and RA. This conflict was due to the fact sju approach control had cleared us to descend to 8000 ft while in the vicinity of widebody transport crossing our flight path level at 10000 ft. We followed TCASII climb instructions and advised ATC. ATC acknowledged but said nothing about the traffic conflict. Resumed descent after clear of conflict.
Original NASA ASRS Text
Title: ACR X TCASII TA RA DSCNT THROUGH OCCUPIED ALT HAD CONFLICT WITH WDB. PLTDEV.
Narrative: ACR X WHILE DSNDING INTO SJU, APCH CTL CLRED US TO DSND TO 8000 FT. WHILE DSNDING THROUGH 11000 FT WE GOT A TCASII TA AND RA. THIS CONFLICT WAS DUE TO THE FACT SJU APCH CTL HAD CLRED US TO DSND TO 8000 FT WHILE IN THE VICINITY OF WDB XING OUR FLT PATH LEVEL AT 10000 FT. WE FOLLOWED TCASII CLB INSTRUCTIONS AND ADVISED ATC. ATC ACKNOWLEDGED BUT SAID NOTHING ABOUT THE TFC CONFLICT. RESUMED DSCNT AFTER CLR OF CONFLICT.
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.