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Large transport crew had near midair collision with intruder aircraft in N-90 class east in IMC. Intruder did not have an IFR flight plan.
| Attributes | |
| ACN | 521757 |
| Time | |
| Date | 200108 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : jfk.vor |
| State Reference | NY |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90.tracon tracon : mco.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : n90.tracon |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise : level |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 1500 |
| ASRS Report | 521757 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne critical conflict : nmac inflight encounter : weather inflight encounter : vfr in imc non adherence : published procedure non adherence : far other anomaly other |
| Independent Detector | aircraft equipment : tcas other flight crewa other flight crewb |
| Resolutory Action | controller : issued alert controller : issued new clearance controller : separated traffic flight crew : took evasive action none taken : detected after the fact other |
| Miss Distance | horizontal : 0 vertical : 300 |
| Supplementary | |
| Problem Areas | ATC Human Performance Airspace Structure Flight Crew Human Performance Weather |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
During climb out we were initially given a clearance to 13000 ft. Then we were advised to stop at 7000 ft for unverified traffic unknown type at 1 O'clock position 10 mi indicating 7500 ft as we approached traffic level at 7000 ft we were in and out of IMC conditions with twring cumulus all quadrants. We received a TCASII advisory of traffic indicating approaching traffic at 300 ft above us. Traffic then appeared at 200 ft above us and we were given an RA to monitor vertical speed. I descended to 6800 ft we advised ATC and the traffic passed directly over our aircraft 300 ft above us. I inquired ATC if traffic was IFR planned to which he replied negative. ATC was very unconcerned of our event when I told him of the event. We continued our climb and handed off to ZNY.
Original NASA ASRS Text
Title: LGT CREW HAD NMAC WITH INTRUDER ACFT IN N-90 CLASS E IN IMC. INTRUDER DID NOT HAVE AN IFR FLT PLAN.
Narrative: DURING CLBOUT WE WERE INITIALLY GIVEN A CLRNC TO 13000 FT. THEN WE WERE ADVISED TO STOP AT 7000 FT FOR UNVERIFIED TFC UNKNOWN TYPE AT 1 O'CLOCK POS 10 MI INDICATING 7500 FT AS WE APCHED TFC LEVEL AT 7000 FT WE WERE IN AND OUT OF IMC CONDITIONS WITH TWRING CUMULUS ALL QUADRANTS. WE RECEIVED A TCASII ADVISORY OF TFC INDICATING APCHING TFC AT 300 FT ABOVE US. TFC THEN APPEARED AT 200 FT ABOVE US AND WE WERE GIVEN AN RA TO MONITOR VERT SPD. I DSNDED TO 6800 FT WE ADVISED ATC AND THE TFC PASSED DIRECTLY OVER OUR ACFT 300 FT ABOVE US. I INQUIRED ATC IF TFC WAS IFR PLANNED TO WHICH HE REPLIED NEGATIVE. ATC WAS VERY UNCONCERNED OF OUR EVENT WHEN I TOLD HIM OF THE EVENT. WE CONTINUED OUR CLB AND HANDED OFF TO ZNY.
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.