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Flight crew of large transport on approach to pdx saw small aircraft pass overhead approximately 250 ft. Small aircraft not on radar scope.
| Attributes | |
| ACN | 183685 |
| Time | |
| Date | 199107 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : pdx |
| State Reference | OR |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pdx |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise 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 total : 10000 |
| ASRS Report | 183685 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : reviewed incident with flight crew Other |
| Miss Distance | horizontal : 0 vertical : 200 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were being vectored to the final approach at pdx and were in a descent from 5000 ft to 2500 ft. The copilot was flying the aircraft and I (captain) was looking to my left to try to spot the runway. As we came out of the clouds at approximately 3000 ft, the flight engineer saw a single engine small aircraft pass over the top of us at a distance of 100 to 300 ft maximum. Neither I nor the copilot saw the aircraft. I advised approach and they said that they saw no traffic. I asked approach if they could skin paint an aircraft in a situation such as this and they replied that although they could sometimes, in this instance they could not. A few mins later the controller called back saying that they did have a skin paint on an aircraft 10 mi from us heading south. When we landed I called the controller and advised him that we were filing a near miss report. No evasive action was taken as the pilots at the controls were looking to the left for the airport and did not see the aircraft.
Original NASA ASRS Text
Title: FLC OF LGT ON APCH TO PDX SAW SMA PASS OVERHEAD APPROX 250 FT. SMA NOT ON RADAR SCOPE.
Narrative: WE WERE BEING VECTORED TO THE FINAL APCH AT PDX AND WERE IN A DSCNT FROM 5000 FT TO 2500 FT. THE COPLT WAS FLYING THE ACFT AND I (CAPT) WAS LOOKING TO MY L TO TRY TO SPOT THE RWY. AS WE CAME OUT OF THE CLOUDS AT APPROX 3000 FT, THE FLT ENGINEER SAW A SINGLE ENG SMA PASS OVER THE TOP OF US AT A DISTANCE OF 100 TO 300 FT MAX. NEITHER I NOR THE COPLT SAW THE ACFT. I ADVISED APCH AND THEY SAID THAT THEY SAW NO TFC. I ASKED APCH IF THEY COULD SKIN PAINT AN ACFT IN A SITUATION SUCH AS THIS AND THEY REPLIED THAT ALTHOUGH THEY COULD SOMETIMES, IN THIS INSTANCE THEY COULD NOT. A FEW MINS LATER THE CTLR CALLED BACK SAYING THAT THEY DID HAVE A SKIN PAINT ON AN ACFT 10 MI FROM US HDG S. WHEN WE LANDED I CALLED THE CTLR AND ADVISED HIM THAT WE WERE FILING A NEAR MISS RPT. NO EVASIVE ACTION WAS TAKEN AS THE PLTS AT THE CTLS WERE LOOKING TO THE L FOR THE ARPT AND DID NOT SEE THE ACFT.
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.