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Small aircraft X unauthorized takeoff on occupied runway had near midair collision less than standard separation with airport runway sweeper.
| Attributes | |
| ACN | 302012 |
| Time | |
| Date | 199504 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : rap |
| State Reference | SD |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : rap |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : takeoff ground other : taxi |
| Flight Plan | None |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| Experience | controller non radar : 1 |
| ASRS Report | 302012 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | aircraft equipment problem : less severe conflict : nmac conflict : ground critical incursion : runway non adherence : required legal separation non adherence : clearance |
| Independent Detector | other controllera other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 300 vertical : 50 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Small aircraft X, a non-based plane called for airport advisories. I gave him WX and taxi instructions. He did not respond. I observed an aircraft moving on ramp. I then cleared an aircraft for takeoff, took an inbound from approach, then approved an airport broom on the runway. I then flipped the men and equipment sign. I then started working on other ATC duties. Airport maintenance asked about the plane X and his broom on the runway. I noticed X airborne and just passing over the airport broom. I would rather not speculate why the pilot entered and departed the active runway without clearance and a large piece of equipment in his way.
Original NASA ASRS Text
Title: SMA X UNAUTH TKOF ON OCCUPIED RWY HAD NMAC LTSS WITH ARPT RWY SWEEPER.
Narrative: SMA X, A NON-BASED PLANE CALLED FOR ARPT ADVISORIES. I GAVE HIM WX AND TAXI INSTRUCTIONS. HE DID NOT RESPOND. I OBSERVED AN ACFT MOVING ON RAMP. I THEN CLRED AN ACFT FOR TKOF, TOOK AN INBOUND FROM APCH, THEN APPROVED AN ARPT BROOM ON THE RWY. I THEN FLIPPED THE MEN AND EQUIP SIGN. I THEN STARTED WORKING ON OTHER ATC DUTIES. ARPT MAINT ASKED ABOUT THE PLANE X AND HIS BROOM ON THE RWY. I NOTICED X AIRBORNE AND JUST PASSING OVER THE ARPT BROOM. I WOULD RATHER NOT SPECULATE WHY THE PLT ENTERED AND DEPARTED THE ACTIVE RWY WITHOUT CLRNC AND A LARGE PIECE OF EQUIP IN HIS WAY.
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.