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Near midair collision between commuter and corp aircraft. See and avoid situation. Report was on old FAA form 8020-12.
| Attributes | |
| ACN | 99269 |
| Time | |
| Date | 198811 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : put |
| State Reference | CT |
| Altitude | msl bound lower : 6000 msl bound upper : 6100 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pvd |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | cruise other descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : corporate |
| Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 99269 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 400 vertical : 100 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
During descent to 6000' on vector from quonset approach control (pvd) we were given VFR unknown traffic, a heading change for vectors to boston, and a second VFR mode C aircraft not in contact with ATC. Within 30 seconds of the sighting from ATC, the first officer saw the other aircraft and initiated an evasive descent. We descended to 5700' to avoid a collision. We were ot offered an avoidance vector or altitude by ATC. He reported the other aircraft at 6500', but we estimate that his altitude was 6100'. The pvd controller said 'I told you' when we reported the near miss, but telling and offering an avoiding vector are quite different. In this case an avoiding vector or altitude would have prevented this situation. Earlier bdl approach gave us vectors to avoid a similar situation and it was greatly appreciated. Pvd approach was not working any other aircraft at the time so workload was not a factor in our eyes. Whatever his 'responsibility,' avoiding vectors for 2 mode C aircraft would help a lot.
Original NASA ASRS Text
Title: NMAC BETWEEN COMMUTER AND CORP ACFT. SEE AND AVOID SITUATION. REPORT WAS ON OLD FAA FORM 8020-12.
Narrative: DURING DSCNT TO 6000' ON VECTOR FROM QUONSET APCH CTL (PVD) WE WERE GIVEN VFR UNKNOWN TFC, A HDG CHANGE FOR VECTORS TO BOSTON, AND A SECOND VFR MODE C ACFT NOT IN CONTACT WITH ATC. WITHIN 30 SECONDS OF THE SIGHTING FROM ATC, THE F/O SAW THE OTHER ACFT AND INITIATED AN EVASIVE DSCNT. WE DSNDED TO 5700' TO AVOID A COLLISION. WE WERE OT OFFERED AN AVOIDANCE VECTOR OR ALT BY ATC. HE RPTED THE OTHER ACFT AT 6500', BUT WE ESTIMATE THAT HIS ALT WAS 6100'. THE PVD CTLR SAID 'I TOLD YOU' WHEN WE RPTED THE NEAR MISS, BUT TELLING AND OFFERING AN AVOIDING VECTOR ARE QUITE DIFFERENT. IN THIS CASE AN AVOIDING VECTOR OR ALT WOULD HAVE PREVENTED THIS SITUATION. EARLIER BDL APCH GAVE US VECTORS TO AVOID A SIMILAR SITUATION AND IT WAS GREATLY APPRECIATED. PVD APCH WAS NOT WORKING ANY OTHER ACFT AT THE TIME SO WORKLOAD WAS NOT A FACTOR IN OUR EYES. WHATEVER HIS 'RESPONSIBILITY,' AVOIDING VECTORS FOR 2 MODE C ACFT WOULD HELP A LOT.
Data retrieved from NASA's ASRS site as of August 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.