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ARTCC radar controller misuses visual separation rules by issuing a climb to a global express aircraft and a descent to a be-30 above FL180 resulting in 3 pt 5 horizontal and 700 ft vertical separation.
| Attributes | |
| ACN | 689003 |
| Time | |
| Date | 200602 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : vtu.vortac |
| State Reference | CA |
| Altitude | msl single value : 18000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla.artcc |
| Operator | general aviation : personal |
| Make Model Name | Super King Air 300 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zla.artcc |
| Operator | general aviation : personal |
| Make Model Name | Global Express |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | pilot : instrument |
| Experience | controller radar : 18 flight time total : 230 |
| ASRS Report | 689003 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Sbound king air descending to FL180; eastbound glex level at 17000 ft. King air reports traffic in sight. Told to maintain visual. Climbed glex to FL230. Aircraft lost separation at FL185.
Original NASA ASRS Text
Title: ARTCC RADAR CTLR MISUSES VISUAL SEPARATION RULES BY ISSUING A CLB TO A GLOBAL EXPRESS ACFT AND A DSCNT TO A BE-30 ABOVE FL180 RESULTING IN 3 PT 5 HORIZ AND 700 FT VERT SEPARATION.
Narrative: SBOUND KING AIR DSNDING TO FL180; EBOUND GLEX LEVEL AT 17000 FT. KING AIR RPTS TFC IN SIGHT. TOLD TO MAINTAIN VISUAL. CLBED GLEX TO FL230. ACFT LOST SEPARATION AT FL185.
Data retrieved from NASA's ASRS site as of January 2009 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.