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Mia controller issued abort to B767 after receiving amass alert on DC10 that was clearing runway at taxiway L10.
| Attributes | |
| ACN | 676496 |
| Time | |
| Date | 200510 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : mia.airport |
| State Reference | FL |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : mia.tower |
| 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 |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller radar : 22 controller time certified in position1 : 3 |
| ASRS Report | 676496 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : ground less severe other anomaly other |
| Independent Detector | atc equipment other atc equipment : amass other controllera |
| Resolutory Action | controller : issued new clearance |
| Miss Distance | vertical : 6500 |
| Supplementary | |
| Problem Areas | ATC Human Performance Navigational Facility |
| Primary Problem | Navigational Facility |
Narrative:
DC10 cleared runway 8R at mia and after clearing; stopped on taxiway L10. On the asde and by observing from the tower; the aircraft appeared clear of runway 8R. However; when B767 started his takeoff roll; the amass alerted and B767 was aborted. The amass was in construction mode due to false alerts earlier with equipment in the clear zone; while in normal mode. DC10 never advised the tower he was not clear of the runway or why he stopped. Even after the amass alerted; DC10 still appeared clear of the runway on the amass.
Original NASA ASRS Text
Title: MIA CTLR ISSUED ABORT TO B767 AFTER RECEIVING AMASS ALERT ON DC10 THAT WAS CLRING RWY AT TXWY L10.
Narrative: DC10 CLRED RWY 8R AT MIA AND AFTER CLRING; STOPPED ON TXWY L10. ON THE ASDE AND BY OBSERVING FROM THE TWR; THE ACFT APPEARED CLR OF RWY 8R. HOWEVER; WHEN B767 STARTED HIS TKOF ROLL; THE AMASS ALERTED AND B767 WAS ABORTED. THE AMASS WAS IN CONSTRUCTION MODE DUE TO FALSE ALERTS EARLIER WITH EQUIP IN THE CLR ZONE; WHILE IN NORMAL MODE. DC10 NEVER ADVISED THE TWR HE WAS NOT CLR OF THE RWY OR WHY HE STOPPED. EVEN AFTER THE AMASS ALERTED; DC10 STILL APPEARED CLR OF THE RWY ON THE AMASS.
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.