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Previously issued traffic not observed by widebody transport resulting in controller intervention to separate aircraft.
| Attributes | |
| ACN | 103177 |
| Time | |
| Date | 198901 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : mia |
| State Reference | FL |
| Altitude | msl bound lower : 2300 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mia |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 4 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft |
| Flight Phase | cruise other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| ASRS Report | 103177 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac non adherence : far other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Miss Distance | horizontal : 3000 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Widebody transport was being vectored in the mia TCA for an approach to runway 9L from the north, the WX was 3100' scattered and good visibility. I issued traffic at 12:30 and 2 mi. This aircraft was northbound on the edge of the TCA. The altitude was issued as indicating 2300'. The widebody transport did not see this VFR unidentified traffic. When they got closer I turned him to heading 160 degree and issued traffic as 12:30 and 1/2 mi. At this point the pilot was garbled but saw the aircraft. I believe the reason the traffic was not seen was that many of these pilots are not looking out the window. Pilots need to be vigilant when operating in a busy terminal area and as they get lower they must watch for VFR traffic. VFR's are allowed to operate on the edge of a TCA and these jet pilots must watch for traffic as they descend.
Original NASA ASRS Text
Title: PREVIOUSLY ISSUED TRAFFIC NOT OBSERVED BY WDB RESULTING IN CTLR INTERVENTION TO SEPARATE ACFT.
Narrative: WDB WAS BEING VECTORED IN THE MIA TCA FOR AN APCH TO RWY 9L FROM THE N, THE WX WAS 3100' SCATTERED AND GOOD VISIBILITY. I ISSUED TFC AT 12:30 AND 2 MI. THIS ACFT WAS NBOUND ON THE EDGE OF THE TCA. THE ALT WAS ISSUED AS INDICATING 2300'. THE WDB DID NOT SEE THIS VFR UNIDENTIFIED TFC. WHEN THEY GOT CLOSER I TURNED HIM TO HDG 160 DEG AND ISSUED TFC AS 12:30 AND 1/2 MI. AT THIS POINT THE PLT WAS GARBLED BUT SAW THE ACFT. I BELIEVE THE REASON THE TFC WAS NOT SEEN WAS THAT MANY OF THESE PLTS ARE NOT LOOKING OUT THE WINDOW. PLTS NEED TO BE VIGILANT WHEN OPERATING IN A BUSY TERMINAL AREA AND AS THEY GET LOWER THEY MUST WATCH FOR VFR TFC. VFR'S ARE ALLOWED TO OPERATE ON THE EDGE OF A TCA AND THESE JET PLTS MUST WATCH FOR TFC AS THEY DSND.
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.