37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 750023 |
Time | |
Date | 200708 |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : shr.airport |
State Reference | WY |
Altitude | msl single value : 9500 |
Environment | |
Flight Conditions | Marginal |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : zlc.artcc |
Operator | general aviation : corporate |
Make Model Name | Citation I |
Operating Under FAR Part | Part 91 |
Flight Phase | descent : approach |
Flight Plan | IFR |
Aircraft 2 | |
Controlling Facilities | artcc : zlc.artcc |
Operator | common carrier : air carrier |
Make Model Name | Brasilia EMB-120 All Series |
Operating Under FAR Part | Part 121 |
Flight Phase | climbout : initial climbout : intermediate altitude |
Flight Plan | IFR |
Person 1 | |
Affiliation | government : faa |
Function | controller : radar |
Qualification | controller : radar |
ASRS Report | 750023 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Events | |
Anomaly | conflict : airborne critical non adherence : required legal separation |
Independent Detector | atc equipment : conflict alert other controllera |
Resolutory Action | controller : issued alert controller : issued new clearance |
Consequence | faa : investigated |
Miss Distance | horizontal : 9000 vertical : 500 |
Supplementary | |
Problem Areas | ATC Human Performance |
Primary Problem | ATC Human Performance |
Air Traffic Incident | Operational Error |
Narrative:
E120 was given a departure clearance off shr when I realized the conflict. I asked the E120 for a position; then got him radar. I issued traffic; the citation reported aircraft in sight. Separation was lost (less than 5 mi/1000 ft). Contributing factors: at the time I issued the clearance I was separating other aircraft with vectors. When the E120 called initially; I couldn't hear him. He said he was airborne but I didn't hear that and this aircraft normally calls off the ground.
Original NASA ASRS Text
Title: ZLC CTLR EXPERIENCED OPERROR NEAR SHR ARPT WHEN CLRING AN ARR FOR AN ILS; BUT FORGETTING ABOUT A RELEASED/AIRBORNE CONFLICTING IFR ACFT.
Narrative: E120 WAS GIVEN A DEP CLRNC OFF SHR WHEN I REALIZED THE CONFLICT. I ASKED THE E120 FOR A POS; THEN GOT HIM RADAR. I ISSUED TFC; THE CITATION RPTED ACFT IN SIGHT. SEPARATION WAS LOST (LESS THAN 5 MI/1000 FT). CONTRIBUTING FACTORS: AT THE TIME I ISSUED THE CLRNC I WAS SEPARATING OTHER ACFT WITH VECTORS. WHEN THE E120 CALLED INITIALLY; I COULDN'T HEAR HIM. HE SAID HE WAS AIRBORNE BUT I DIDN'T HEAR THAT AND THIS ACFT NORMALLY CALLS OFF THE GND.
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.