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Near midair collision between air carrier medium large transport and GA light twin medium large transport on brush one STAR to stl.
| Attributes | |
| ACN | 148637 |
| Time | |
| Date | 199006 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : stl |
| State Reference | MO |
| Altitude | msl bound lower : 10000 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star enroute airway : zkc |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Transport, Low Wing, 2 Recip Eng |
| Flight Phase | climbout : intermediate altitude |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 13000 flight time type : 180 |
| ASRS Report | 148637 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 130 flight time total : 3200 flight time type : 130 |
| ASRS Report | 148783 |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Miss Distance | horizontal : 200 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
My flight, air carrier medium large transport X, was on the 'brush' arrival to st louis and told to cross 'oddly' intersection at 10000' and 250 KTS. The first officer was flying. While at 10000' and 3 mi east of 'oddly' and slowing through 270 KTS the first officer and I both observed an small transport Y at ten 0'clock, the same altitude, going 180 degree to our direction. I estimated the horizontal sep at 200'. I notified st louis approach control and the controller stated that the aircraft Y had not shown on radar. After a short pause, approach called us and stated that center had just picked up the aircraft and the transponder indicated 10900'. (Why didn't approach radar observe the aircraft?)
Original NASA ASRS Text
Title: NMAC BETWEEN ACR MLG AND GA LIGHT TWIN MLG ON BRUSH ONE STAR TO STL.
Narrative: MY FLT, ACR MLG X, WAS ON THE 'BRUSH' ARR TO ST LOUIS AND TOLD TO CROSS 'ODDLY' INTXN AT 10000' AND 250 KTS. THE F/O WAS FLYING. WHILE AT 10000' AND 3 MI E OF 'ODDLY' AND SLOWING THROUGH 270 KTS THE F/O AND I BOTH OBSERVED AN SMT Y AT TEN 0'CLOCK, THE SAME ALT, GOING 180 DEG TO OUR DIRECTION. I ESTIMATED THE HORIZ SEP AT 200'. I NOTIFIED ST LOUIS APCH CTL AND THE CTLR STATED THAT THE ACFT Y HAD NOT SHOWN ON RADAR. AFTER A SHORT PAUSE, APCH CALLED US AND STATED THAT CTR HAD JUST PICKED UP THE ACFT AND THE XPONDER INDICATED 10900'. (WHY DIDN'T APCH RADAR OBSERVE 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.