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Atl controller; responding to amass alert; issued abort to B767 departure as ATR72 was observed clear of runway during crossing event.
| Attributes | |
| ACN | 676595 |
| Time | |
| Date | 200511 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : atl.airport |
| State Reference | GA |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : takeoff roll |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : atl.tower |
| Operator | common carrier : air carrier |
| Make Model Name | ATR 72 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar controller : military |
| Experience | controller military : 4 controller radar : 28 controller time certified in position1 : 20 |
| ASRS Report | 676595 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : ground less severe |
| Independent Detector | atc equipment other atc equipment : amass other controllera |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Miss Distance | horizontal : 6000 |
| Supplementary | |
| Problem Areas | ATC Facility ATC Human Performance |
| Primary Problem | ATC Facility |
| Situations | |
| ATC Facility | computer equipment : atl.tower |
Narrative:
B767 on takeoff roll. ATR72 had completed runway crossing and was clear. Amass alert activated; at which time I aborted the takeoff of the B767. False amass alert.
Original NASA ASRS Text
Title: ATL CTLR; RESPONDING TO AMASS ALERT; ISSUED ABORT TO B767 DEP AS ATR72 WAS OBSERVED CLR OF RWY DURING XING EVENT.
Narrative: B767 ON TKOF ROLL. ATR72 HAD COMPLETED RWY XING AND WAS CLR. AMASS ALERT ACTIVATED; AT WHICH TIME I ABORTED THE TKOF OF THE B767. FALSE AMASS ALERT.
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.