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Flight crew of medium large transport had near midair collision with small aircraft on vectored approach to sna.
| Attributes | |
| ACN | 133737 |
| Time | |
| Date | 199001 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : sna |
| State Reference | CA |
| Altitude | msl bound lower : 4700 msl bound upper : 5200 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : sna |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 210 flight time total : 8000 flight time type : 2000 |
| ASRS Report | 133737 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Events | |
| Anomaly | conflict : nmac non adherence : far |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 500 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While on vectors from approach control at 5000', heading 045 degree, traffic was called out at 5200', 11-12 O'clock less than a mile. Looking up I saw a low-wing single-engine type aircraft. I immediately descended to 4700' and the aircraft passed just slightly, overhead. The controller was handling several aircraft at once and fortunately he spotted the other aircraft and was able to call him out. The following day I was contacted by the FAA and told that the aircraft had been tracked and the owner denied being airborne at the time.
Original NASA ASRS Text
Title: FLT CREW OF MLG HAD NMAC WITH SMA ON VECTORED APCH TO SNA.
Narrative: WHILE ON VECTORS FROM APCH CTL AT 5000', HDG 045 DEG, TFC WAS CALLED OUT AT 5200', 11-12 O'CLOCK LESS THAN A MILE. LOOKING UP I SAW A LOW-WING SINGLE-ENGINE TYPE ACFT. I IMMEDIATELY DESCENDED TO 4700' AND THE ACFT PASSED JUST SLIGHTLY, OVERHEAD. THE CTLR WAS HANDLING SEVERAL ACFT AT ONCE AND FORTUNATELY HE SPOTTED THE OTHER ACFT AND WAS ABLE TO CALL HIM OUT. THE FOLLOWING DAY I WAS CONTACTED BY THE FAA AND TOLD THAT THE ACFT HAD BEEN TRACKED AND THE OWNER DENIED BEING AIRBORNE AT THE TIME.
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.