 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Near midair collision reported involving a maneuvering BE90 flight checking runway 17 VOR approach and an air carrier DC9 departure runway 30.
| Attributes | |
| ACN | 383070 |
| Time | |
| Date | 199710 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : stl |
| State Reference | MO |
| Altitude | msl bound lower : 650 msl bound upper : 650 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : stl |
| Operator | other |
| Make Model Name | King Air C90 E90 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other descent : approach |
| Route In Use | approach : visual |
| Flight Plan | VFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar pilot : private |
| Experience | controller radar : 10 flight time total : 110 |
| ASRS Report | 383070 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 300 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
Narrative:
King air was flight checking runway 17 VOR approach and issued a right turn, pilot navigation, at or below 3000 ft. DC9 cleared for takeoff runway 30L. Local south was working DC9 and local north was working king air. No coordination between either local or tower supervisor regarding the king air's clearance. DC9 was airborne and advised of king air traffic directly above turning north. The king air was turned back south to avoid conflict, and the DC9 was told to keep down. The problem arose from lack of coordination between controllers and supervisor. Local south was told the king air aircraft would remain north of the field, but was later issued a clearance that allowed the king air to be anywhere west of the extended centerline of runway 17 at or below 3000 ft. This was not coordinated with local south.
Original NASA ASRS Text
Title: NMAC RPTED INVOLVING A MANEUVERING BE90 FLT CHKING RWY 17 VOR APCH AND AN ACR DC9 DEP RWY 30.
Narrative: KING AIR WAS FLT CHKING RWY 17 VOR APCH AND ISSUED A R TURN, PLT NAV, AT OR BELOW 3000 FT. DC9 CLRED FOR TKOF RWY 30L. LCL SOUTH WAS WORKING DC9 AND LCL NORTH WAS WORKING KING AIR. NO COORD BTWN EITHER LCL OR TWR SUPVR REGARDING THE KING AIR'S CLRNC. DC9 WAS AIRBORNE AND ADVISED OF KING AIR TFC DIRECTLY ABOVE TURNING N. THE KING AIR WAS TURNED BACK S TO AVOID CONFLICT, AND THE DC9 WAS TOLD TO KEEP DOWN. THE PROB AROSE FROM LACK OF COORD BTWN CTLRS AND SUPVR. LCL SOUTH WAS TOLD THE KING AIR ACFT WOULD REMAIN N OF THE FIELD, BUT WAS LATER ISSUED A CLRNC THAT ALLOWED THE KING AIR TO BE ANYWHERE W OF THE EXTENDED CTRLINE OF RWY 17 AT OR BELOW 3000 FT. THIS WAS NOT COORDINATED WITH LCL SOUTH.
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.