 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
ARTCC radar controller creates loss of separation and ATC conflict alert when he inadvertently turned a B737 toward a beech king air by mistake when vectoring the B737 toward the destination runway.
| Attributes | |
| ACN | 542443 |
| Time | |
| Date | 200203 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : bae.vortac |
| State Reference | WI |
| Altitude | msl single value : 1200 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau.artcc tower : cle.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : approach |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zau.artcc |
| Operator | general aviation : corporate |
| Make Model Name | King Air C90 E90 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach descent : intermediate altitude |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : developmental |
| Experience | controller limited radar : 1 controller time certified in position2 : 3 |
| ASRS Report | 542443 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : separated traffic |
| Miss Distance | horizontal : 26500 vertical : 100 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Attempted to parallel the B737 along side the BE9/left (king air). I unintentionally turned B737 15 degrees right radar vector for runway 1L for mke when I meant to turn B737 15 degrees left to ensure separation. I observed the B737 turn toward the king air and turned it 15 degrees left when the snitch started to go off. I attempted to restate the turn and provide traffic alert for both aircraft and the B737 asked for the heading. I then attempted to ensure separation by turning the king air 20 degrees right. By then they had come 4.4 mi and the jet was almost by. The initial readback was correct so I did not catch the mistake until the turn was established. Next time use a fix.
Original NASA ASRS Text
Title: ARTCC RADAR CTLR CREATES LOSS OF SEPARATION AND ATC CONFLICT ALERT WHEN HE INADVERTENTLY TURNED A B737 TOWARD A BEECH KING AIR BY MISTAKE WHEN VECTORING THE B737 TOWARD THE DEST RWY.
Narrative: ATTEMPTED TO PARALLEL THE B737 ALONG SIDE THE BE9/L (KING AIR). I UNINTENTIONALLY TURNED B737 15 DEGS R RADAR VECTOR FOR RWY 1L FOR MKE WHEN I MEANT TO TURN B737 15 DEGS L TO ENSURE SEPARATION. I OBSERVED THE B737 TURN TOWARD THE KING AIR AND TURNED IT 15 DEGS L WHEN THE SNITCH STARTED TO GO OFF. I ATTEMPTED TO RESTATE THE TURN AND PROVIDE TFC ALERT FOR BOTH ACFT AND THE B737 ASKED FOR THE HEADING. I THEN ATTEMPTED TO ENSURE SEPARATION BY TURNING THE KING AIR 20 DEGS R. BY THEN THEY HAD COME 4.4 MI AND THE JET WAS ALMOST BY. THE INITIAL READBACK WAS CORRECT SO I DID NOT CATCH THE MISTAKE UNTIL THE TURN WAS ESTABLISHED. NEXT TIME USE A FIX.
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.