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Captain of a widebody transport air carrier aircraft deviated from assigned altitude in response to a TCASII RA during descent for landing.
| Attributes | |
| ACN | 266148 |
| Time | |
| Date | 199403 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : jfk airport : n90 |
| State Reference | NY |
| Altitude | msl bound lower : 3200 msl bound upper : 3500 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 225 flight time total : 21000 flight time type : 2000 |
| ASRS Report | 266148 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : nmac non adherence : clearance non adherence : required legal separation |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | flight crew : took evasive action flight crew : returned to intended course or assigned course |
| Consequence | faa : investigated faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 0 vertical : 200 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Radar vector for approach to jfk, heading about 280 degrees descending to 3000 ft. Given a turn to about 200 degrees by approach at the same time received a TCASII warning requiring evasive action. Started a left climbing turn to about 3500 ft. Advised approach control, but received no readback. The international relief pilot (irp) on board saw the traffic on the scope. We missed by 200 ft vertical separation and '0' ft horizontal. TRACON was swamped with traffic! Contacted TRACON jfk sector to discuss event, under investigation.
Original NASA ASRS Text
Title: CAPT OF A WDB ACR ACFT DEVIATED FROM ASSIGNED ALT IN RESPONSE TO A TCASII RA DURING DSCNT FOR LNDG.
Narrative: RADAR VECTOR FOR APCH TO JFK, HDG ABOUT 280 DEGS DSNDING TO 3000 FT. GIVEN A TURN TO ABOUT 200 DEGS BY APCH AT THE SAME TIME RECEIVED A TCASII WARNING REQUIRING EVASIVE ACTION. STARTED A L CLBING TURN TO ABOUT 3500 FT. ADVISED APCH CTL, BUT RECEIVED NO READBACK. THE INTL RELIEF PLT (IRP) ON BOARD SAW THE TFC ON THE SCOPE. WE MISSED BY 200 FT VERT SEPARATION AND '0' FT HORIZ. TRACON WAS SWAMPED WITH TFC! CONTACTED TRACON JFK SECTOR TO DISCUSS EVENT, UNDER INVESTIGATION.
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.