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Breakdown in anc tower between local controller and ground controller as C150 is cleared to cross runway and C172 makes evasive maneuver.
| Attributes | |
| ACN | 509110 |
| Time | |
| Date | 200104 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mri.airport |
| State Reference | AK |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : mri.tower |
| Operator | general aviation : instructional |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | ground : taxi landing : touch and go |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller non radar : 12 |
| ASRS Report | 509110 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : developmental |
| Events | |
| Anomaly | conflict : ground critical ground encounters other incursion : runway non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : took precautionary avoidance action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 500 vertical : 0 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure Operational Error |
Narrative:
Local control developmental told the ground controller to cross an aircraft at taxiway G. There will be an aircraft in the hold position. Local controller thought ground controller saw the touch-and-go and would cross behind. The ground controller did not know about the touch-and-go aircraft. Ground controller tried to stop the crossing aircraft, but they kept taxiing across. The touch-and-go aircraft decided to make a full stop.
Original NASA ASRS Text
Title: BREAKDOWN IN ANC TWR BTWN LCL CTLR AND GND CTLR AS C150 IS CLRED TO CROSS RWY AND C172 MAKES EVASIVE MANEUVER.
Narrative: LCL CTL DEVELOPMENTAL TOLD THE GND CTLR TO CROSS AN ACFT AT TXWY G. THERE WILL BE AN ACFT IN THE HOLD POS. LCL CTLR THOUGHT GND CTLR SAW THE TOUCH-AND-GO AND WOULD CROSS BEHIND. THE GND CTLR DID NOT KNOW ABOUT THE TOUCH-AND-GO ACFT. GND CTLR TRIED TO STOP THE XING ACFT, BUT THEY KEPT TAXIING ACROSS. THE TOUCH-AND-GO ACFT DECIDED TO MAKE A FULL STOP.
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.