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            37000 Feet | Browse and search NASA's Aviation Safety Reporting System  | 
            
                
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| Attributes | |
| ACN | 524960 | 
| Time | |
| Date | 200109 | 
| Day | Tue | 
| Local Time Of Day | 0601 To 1200 | 
| Place | |
| Locale Reference | navaid : hgr.vor | 
| State Reference | MD | 
| Altitude | msl bound lower : 5000 msl bound upper : 9000  | 
| Environment | |
| Flight Conditions | IMC | 
| Light | Daylight | 
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc | 
| Operator | general aviation : personal | 
| Make Model Name | Learjet 31 | 
| Operating Under FAR Part | Part 91 | 
| Navigation In Use | other other vortac  | 
| Flight Phase | descent : intermediate altitude | 
| Flight Plan | IFR | 
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc | 
| Operator | common carrier : air taxi | 
| Make Model Name | Jetstream 41 | 
| Operating Under FAR Part | Part 135 | 
| Navigation In Use | other other vortac  | 
| Flight Phase | cruise : enroute altitude change | 
| Flight Plan | IFR | 
| Person 1 | |
| Affiliation | government : faa | 
| Function | controller : radar | 
| Qualification | controller : radar | 
| Experience | controller radar : 32 controller time certified in position1 : 30  | 
| ASRS Report | 524960 | 
| Person 2 | |
| Affiliation | other | 
| Function | flight crew : captain oversight : pic  | 
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure  | 
| Independent Detector | atc equipment : conflict alert other controllera  | 
| Resolutory Action | none taken : detected after the fact | 
| Consequence | faa : investigated | 
| Miss Distance | horizontal : 27300 vertical : 300  | 
| Supplementary | |
| Problem Areas | ATC Human Performance | 
| Primary Problem | ATC Human Performance | 
| Air Traffic Incident | Operational Error | 
Narrative:
Aircraft Y was an overflt at 9000 ft. I thought he was going north bound and not turning northeast. Aircraft X was cleared to 5000 ft going east bound to thv (york, PA) when aircraft Y turned northeast, separation was lost.
Original NASA ASRS Text
Title: ZDC CTLR OVERLOOKS CHANGE IN RTE BTWN AN ENRTE JS41 THAT CONFLICTS WITH A DSNDING LJ31.
Narrative: ACFT Y WAS AN OVERFLT AT 9000 FT. I THOUGHT HE WAS GOING N BOUND AND NOT TURNING NE. ACFT X WAS CLEARED TO 5000 FT GOING E BOUND TO THV (YORK, PA) WHEN ACFT Y TURNED NE, SEPARATION WAS LOST.
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.