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An MU2 aircraft under control of pvd approach entered another controller's airspace without controller coordination resulting in a serious conflict with a B737.
| Attributes | |
| ACN | 555864 |
| Time | |
| Date | 200208 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : pvd.vortac |
| State Reference | RI |
| Altitude | msl single value : 9000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pvd.tracon tower : dfw.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 | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : pvd.tracon |
| Operator | general aviation : personal |
| Make Model Name | MU-2 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 3 controller time certified in position1 : 3 |
| ASRS Report | 555864 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Events | |
| Anomaly | airspace violation : entry conflict : airborne critical non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other controllerb other flight crewa other flight crewb other other : 3 |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 4740 vertical : 0 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure Operational Error |
Narrative:
I was working busy traffic and had a coordinator. Aircraft Y flight planned through controller B's airspace but turned to avoid WX and barely entered controller B's airspace. Aircraft then entered controller C's airspace without coordination from controller B. Controller B was working the aircraft and only 2 other aircraft. Controller C had aircraft X climbing through aircraft Y's altitude on a collision course. The action of the pilots saved their lives.
Original NASA ASRS Text
Title: AN MU2 ACFT UNDER CTL OF PVD APCH ENTERED ANOTHER CTLR'S AIRSPACE WITHOUT CTLR COORD RESULTING IN A SERIOUS CONFLICT WITH A B737.
Narrative: I WAS WORKING BUSY TFC AND HAD A COORDINATOR. ACFT Y FLT PLANNED THROUGH CTLR B'S AIRSPACE BUT TURNED TO AVOID WX AND BARELY ENTERED CTLR B'S AIRSPACE. ACFT THEN ENTERED CTLR C'S AIRSPACE WITHOUT COORD FROM CTLR B. CTLR B WAS WORKING THE ACFT AND ONLY 2 OTHER ACFT. CTLR C HAD ACFT X CLBING THROUGH ACFT Y'S ALT ON A COLLISION COURSE. THE ACTION OF THE PLTS SAVED THEIR LIVES.
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.