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Near midair collision between an small aircraft under positive control and a VFR cherokee spiraling down through the clouds on a VFR flight plan. Approach controller issues advisory and heading as pilot sees intruder.
| Attributes | |
| ACN | 380210 |
| Time | |
| Date | 199709 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : uca |
| State Reference | NY |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : uca |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Piper Single Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other descent other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : atp pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 25 flight time total : 30000 flight time type : 115 |
| ASRS Report | 380210 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Events | |
| Anomaly | conflict : nmac inflight encounter : vfr in imc non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action other |
| Consequence | Other |
| Miss Distance | horizontal : 300 vertical : 200 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Above pilot was being vectored for an ILS approach at the uca, ny, airport. Said aircraft was at 3000 ft MSL and in and out of the tops of a broken to overcast layer of clouds. Griffiss approach control called out VFR traffic at 12 O'clock position at 3500 ft. I was unable to see traffic because of IFR (IMC) flight conditions. Traffic was called out again at 1/2 mi and descending. Controller then gave me a vector to avoid traffic just as I broke out of clouds. Traffic was spiraling through the cloud layer right in front of me. It was a very near miss as I had to take immediate evasive action. This traffic turned out to be a cherokee from slk, number xyz, descending VFR through a broken to solid cloud layer. I talked to the pilot and he stated he did not see me and was on a VFR flight plan. As far as I can see this was a very poor choice of the VFR traffic as he had no radio contact with the approach controller. The controller caught the cherokee just as he was leaving his altitude and did a great job saving my hide. You should be hearing from other aircraft as he stated to me that he would file a NASA report.
Original NASA ASRS Text
Title: NMAC BTWN AN SMA UNDER POSITIVE CTL AND A VFR CHEROKEE SPIRALING DOWN THROUGH THE CLOUDS ON A VFR FLT PLAN. APCH CTLR ISSUES ADVISORY AND HDG AS PLT SEES INTRUDER.
Narrative: ABOVE PLT WAS BEING VECTORED FOR AN ILS APCH AT THE UCA, NY, ARPT. SAID ACFT WAS AT 3000 FT MSL AND IN AND OUT OF THE TOPS OF A BROKEN TO OVCST LAYER OF CLOUDS. GRIFFISS APCH CTL CALLED OUT VFR TFC AT 12 O'CLOCK POS AT 3500 FT. I WAS UNABLE TO SEE TFC BECAUSE OF IFR (IMC) FLT CONDITIONS. TFC WAS CALLED OUT AGAIN AT 1/2 MI AND DSNDING. CTLR THEN GAVE ME A VECTOR TO AVOID TFC JUST AS I BROKE OUT OF CLOUDS. TFC WAS SPIRALING THROUGH THE CLOUD LAYER RIGHT IN FRONT OF ME. IT WAS A VERY NEAR MISS AS I HAD TO TAKE IMMEDIATE EVASIVE ACTION. THIS TFC TURNED OUT TO BE A CHEROKEE FROM SLK, NUMBER XYZ, DSNDING VFR THROUGH A BROKEN TO SOLID CLOUD LAYER. I TALKED TO THE PLT AND HE STATED HE DID NOT SEE ME AND WAS ON A VFR FLT PLAN. AS FAR AS I CAN SEE THIS WAS A VERY POOR CHOICE OF THE VFR TFC AS HE HAD NO RADIO CONTACT WITH THE APCH CTLR. THE CTLR CAUGHT THE CHEROKEE JUST AS HE WAS LEAVING HIS ALT AND DID A GREAT JOB SAVING MY HIDE. YOU SHOULD BE HEARING FROM OTHER ACFT AS HE STATED TO ME THAT HE WOULD FILE A NASA RPT.
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.