 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B757 flight crew descended in response to TCASII RA during an ILS approach. Tower issued a TA of a C172 3 mi ahead. Both aircraft were in IMC.
| Attributes | |
| ACN | 542703 |
| Time | |
| Date | 200202 |
| Day | Thu |
| Place | |
| State Reference | VI |
| Altitude | msl single value : 2200 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 542703 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : nmac inflight encounter : weather non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other flight crewa other flight crewb |
| Resolutory Action | controller : issued advisory flight crew : took precautionary avoidance action other |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 0 vertical : 500 |
| Supplementary | |
| Problem Areas | Weather ATC Human Performance Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error other |
Narrative:
I was captain on XXX jfk-stt on mar/xa/02. Everything was normal until we had descended to 2200 ft for the ILS to runway 10 at stt. We got a pop-up TCASII target at 1 O'clock and 3 mi. We were in IMC at the time. At almost the same time, sju announced to us the traffic -- a C172 at 2200 ft, co-altitude, in the WX in front of us and 3 NM away. We descended VFR conditions at 1700 ft, advised sju that we were doing so and then proceeded to make a normal landing. What bothers me most is the lack of warning given us on traffic that was quite clearly IFR.
Original NASA ASRS Text
Title: B757 FLC DSNDED IN RESPONSE TO TCASII RA DURING AN ILS APCH. TWR ISSUED A TA OF A C172 3 MI AHEAD. BOTH ACFT WERE IN IMC.
Narrative: I WAS CAPT ON XXX JFK-STT ON MAR/XA/02. EVERYTHING WAS NORMAL UNTIL WE HAD DSNDED TO 2200 FT FOR THE ILS TO RWY 10 AT STT. WE GOT A POP-UP TCASII TARGET AT 1 O'CLOCK AND 3 MI. WE WERE IN IMC AT THE TIME. AT ALMOST THE SAME TIME, SJU ANNOUNCED TO US THE TFC -- A C172 AT 2200 FT, CO-ALT, IN THE WX IN FRONT OF US AND 3 NM AWAY. WE DSNDED VFR CONDITIONS AT 1700 FT, ADVISED SJU THAT WE WERE DOING SO AND THEN PROCEEDED TO MAKE A NORMAL LNDG. WHAT BOTHERS ME MOST IS THE LACK OF WARNING GIVEN US ON TFC THAT WAS QUITE CLRLY IFR.
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.