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Flight crew of medium large transport had TCASII RA to descend. Descended from 10000 to 9500 then returned to 10000.
| Attributes | |
| ACN | 198324 |
| Time | |
| Date | 199112 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ccc airport : isp |
| State Reference | NY |
| Altitude | msl bound lower : 9500 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zbw |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : atp pilot : cfi pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 9000 flight time type : 1000 |
| ASRS Report | 198324 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : instrument pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Miss Distance | horizontal : 30000 vertical : 1000 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While being radar vectored by bos center for an approach to isp we were notified of traffic at 1 O'clock opposite direction descending to 11000 ft. We were level at 10000. At the same time we got visual contact, we got a TA followed by a RA to descend. We immediately descended to 9500 where we got a clear of conflict and then returned to 10000. The entire incident was less than 2 mins.
Original NASA ASRS Text
Title: FLC OF MLG HAD TCASII RA TO DSND. DSNDED FROM 10000 TO 9500 THEN RETURNED TO 10000.
Narrative: WHILE BEING RADAR VECTORED BY BOS CENTER FOR AN APCH TO ISP WE WERE NOTIFIED OF TFC AT 1 O'CLOCK OPPOSITE DIRECTION DSNDING TO 11000 FT. WE WERE LEVEL AT 10000. AT THE SAME TIME WE GOT VISUAL CONTACT, WE GOT A TA FOLLOWED BY A RA TO DSND. WE IMMEDIATELY DSNDED TO 9500 WHERE WE GOT A CLR OF CONFLICT AND THEN RETURNED TO 10000. THE ENTIRE INCIDENT WAS LESS THAN 2 MINS.
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.