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Small transport conflicted with opposite direction traffic at the same altitude. Resulting in less than standard separation.
| Attributes | |
| ACN | 110517 |
| Time | |
| Date | 198905 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : sac |
| State Reference | CA |
| Altitude | msl bound lower : 11000 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Route In Use | departure other enroute airway : mcc |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 5 |
| ASRS Report | 110517 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 12000 vertical : 200 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Small transport X was sebnd V23 from sac conflicted with air carrier Y arrival at 1,000' due to wrong altitude assignment. Action was taken to correct, however, loss of separation did occur. (200' lateral.)
Original NASA ASRS Text
Title: SMT CONFLICTED WITH OPPOSITE DIRECTION TRAFFIC AT THE SAME ALT. RESULTING IN LESS THAN STANDARD SEPARATION.
Narrative: SMT X WAS SEBND V23 FROM SAC CONFLICTED WITH ACR Y ARR AT 1,000' DUE TO WRONG ALT ASSIGNMENT. ACTION WAS TAKEN TO CORRECT, HOWEVER, LOSS OF SEPARATION DID OCCUR. (200' LATERAL.)
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.