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Dab controller experienced operational error after assuming an adjacent controller would stop the climb of a conflicting aircraft.
| Attributes | |
| ACN | 651038 |
| Time | |
| Date | 200503 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : sfb.airport |
| State Reference | FL |
| Altitude | msl single value : 4000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mco.tracon |
| Operator | general aviation : personal |
| Make Model Name | Bonanza 35 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : dab.tracon |
| Operator | general aviation : corporate |
| Make Model Name | Premier 1 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Experience | controller radar : 23 |
| ASRS Report | 651038 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 200 vertical : 1200 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Bonanza handed off to mco approach left dab airspace; mco had PRM1 climbing northbound; low altitude initially. I saw out of 2000 ft thought they leveled him because of very slow climbing to 3000 ft; then noticed later the PRM1 was still climbing. Saw altitude 3300 ft estimated less than 3 mi apart; then noticed mco had turned a PRM1 away from bonanza when I saw the less than required IFR separation.
Original NASA ASRS Text
Title: DAB CTLR EXPERIENCED OPERROR AFTER ASSUMING AN ADJACENT CTLR WOULD STOP THE CLB OF A CONFLICTING ACFT.
Narrative: BONANZA HANDED OFF TO MCO APCH LEFT DAB AIRSPACE; MCO HAD PRM1 CLBING NBOUND; LOW ALT INITIALLY. I SAW OUT OF 2000 FT THOUGHT THEY LEVELED HIM BECAUSE OF VERY SLOW CLBING TO 3000 FT; THEN NOTICED LATER THE PRM1 WAS STILL CLBING. SAW ALT 3300 FT ESTIMATED LESS THAN 3 MI APART; THEN NOTICED MCO HAD TURNED A PRM1 AWAY FROM BONANZA WHEN I SAW THE LESS THAN REQUIRED IFR SEPARATION.
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.