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Lvk tower controllers and a pilot reported an aircraft began its takeoff roll from a taxiway instead of the runway and when aborting its takeoff taxied without a clearance five feet away from another taxiing aircraft.
| Attributes | |
| ACN | 1480969 |
| Time | |
| Date | 201709 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | LVK.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Small Aircraft Low Wing 1 Eng Retractable Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Takeoff |
| Route In Use | None |
| Flight Plan | VFR |
| Aircraft 2 | |
| Make Model Name | Small Aircraft High Wing 1 Eng Fixed Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Taxi |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 5 |
| Person 2 | |
| Function | Local |
| Qualification | Air Traffic Control Developmental |
| Events | |
| Anomaly | Conflict Ground Conflict Critical Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Ground Incursion Runway Ground Incursion Taxiway |
Narrative:
I was an ojti (on the job instructor) on local control and the trainee cleared aircraft X for takeoff. A few seconds later I observed aircraft X attempting to takeoff on a taxiway. I took over the frequency and told the aircraft to stop. The aircraft picked up the speed and did not respond. I instructed the aircraft to stop 3 more times. The aircraft finally came to a stop without further incident.pilots need to be familiar with airport markings to prevent incidents like this. I suggest FSDO to be proactive and possibly enforcing age restrictions and stricter licensing requirements; i.e.; be able to see and hear and listen to instructions. He was not able to see his license to read us the information when asked. He stated he did not hear our numerous attempts to stop him. Pilots like these pose a great threat to the national airspace system (NAS) and need to be looked at closely.
Original NASA ASRS Text
Title: LVK Tower Controllers and a pilot reported an aircraft began its takeoff roll from a taxiway instead of the runway and when aborting its takeoff taxied without a clearance five feet away from another taxiing aircraft.
Narrative: I was an OJTI (On The Job Instructor) on Local Control and the trainee cleared Aircraft X for takeoff. A few seconds later I observed aircraft X attempting to takeoff on a taxiway. I took over the frequency and told the aircraft to stop. The aircraft picked up the speed and did not respond. I instructed the aircraft to stop 3 more times. The aircraft finally came to a stop without further incident.Pilots need to be familiar with airport markings to prevent incidents like this. I suggest FSDO to be proactive and possibly enforcing age restrictions and stricter licensing requirements; i.e.; be able to see and hear and listen to instructions. He was not able to see his license to read us the information when asked. He stated he did not hear our numerous attempts to stop him. Pilots like these pose a great threat to the National Airspace System (NAS) and need to be looked at closely.
Data retrieved from NASA's ASRS site 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.