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A tower controller did not issue traffic alerts to an arriving and departing aircraft resulting in near midair collision.
| Attributes | |
| ACN | 596405 |
| Time | |
| Date | 200310 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sua.airport |
| State Reference | FL |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : sua.tower |
| Operator | general aviation : personal |
| Make Model Name | PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Aircraft 2 | |
| Controlling Facilities | tower : sua.tower |
| Operator | general aviation : personal |
| Make Model Name | PA-44 Seminole Turbo Seminole |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : takeoff |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar pilot : instrument |
| Experience | controller non radar : 26 controller time certified in position1 : 3.91 flight time total : 5000 |
| ASRS Report | 596405 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action none taken : detected after the fact |
| Miss Distance | vertical : 100 |
| Supplementary | |
| Problem Areas | Airport ATC Human Performance Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was working local and was moderately busy. A PA28 called inbound from the west. I instructed the aircraft to make left traffic runway 30 and report left downwind midfield. I then cleared 2 aircraft for takeoff. I then cleared the PA44 for takeoff. About 2 mins after the PA44 departed the PA28 entered the downwind and reported a twin had passed over him approximately 100 ft above him. I failed to issue traffic to either aircraft. The PA28 didn't enter the downwind at a 45 degrees to the downwind midfield. Lack of radar sua.
Original NASA ASRS Text
Title: A TWR CTLR DID NOT ISSUE TFC ALERTS TO AN ARRIVING AND DEPARTING ACFT RESULTING IN NMAC.
Narrative: I WAS WORKING LCL AND WAS MODERATELY BUSY. A PA28 CALLED INBOUND FROM THE W. I INSTRUCTED THE ACFT TO MAKE L TFC RWY 30 AND RPT L DOWNWIND MIDFIELD. I THEN CLRED 2 ACFT FOR TKOF. I THEN CLRED THE PA44 FOR TKOF. ABOUT 2 MINS AFTER THE PA44 DEPARTED THE PA28 ENTERED THE DOWNWIND AND RPTED A TWIN HAD PASSED OVER HIM APPROX 100 FT ABOVE HIM. I FAILED TO ISSUE TFC TO EITHER ACFT. THE PA28 DIDN'T ENTER THE DOWNWIND AT A 45 DEGS TO THE DOWNWIND MIDFIELD. LACK OF RADAR SUA.
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.