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Den tower controller reported clearing an aircraft to land then joining a discussion. Controller used a memory aid to remind him of the landing traffic. Controller then did a few other things and removed the memory aid and joined the conversation again. Controller then scanned the runway seeing no traffic on it and cleared the next aircraft for takeoff. Traffic was on landing roll and the pilot advised tower they were still on the runway. Controller told departing aircraft to line up and wait. Controller is aware of distractions and stated that he should have been more attentive to the position.
| Attributes | |
| ACN | 1286327 |
| Time | |
| Date | 201507 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | DEN.Airport |
| State Reference | CO |
| Aircraft 1 | |
| Make Model Name | Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Landing |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Medium Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Taxi |
| Route In Use | None |
| Flight Plan | IFR |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 2.5 |
| Events | |
| Anomaly | ATC Issue All Types Conflict Ground Conflict Less Severe Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Ground Incursion Runway |
Narrative:
Aircraft X was cleared to land runway 17R at which time I placed the appropriate memory aid device on my runway 17R board. I turned my back on the position to converse in a discussion that was going on behind me. When I turned back to the window I switched another aircraft that was departing runway 8 to denver departure and inadvertently removed the wrong strip holder which was the memory aid for runway 17R. I turned back to my conversation then noticed I had a departure waiting for runway 17R.I scanned my runway and did not notice any aircraft on the runway and with no memory aid on my board I cleared aircraft Y for takeoff. Aircraft Y acknowledged the clearance and started to taxi on the runway. Aircraft X was just landing and rolling down the runway. Again I turned back to finish the conversation when aircraft X replied to the tower that he was still on the runway. Aircraft Y was told to 'line up and wait'. The pilot of aircraft Y acknowledged the transmission and said that sounded better. Once aircraft X exited the runway aircraft Y was given takeoff clearance and departed.distractions in the tower are normal everywhere. The local controller should have been more attentive to the position and if a discussion was needed it should have been conducted once relieved from work duties.
Original NASA ASRS Text
Title: DEN Tower Controller reported clearing an aircraft to land then joining a discussion. Controller used a memory aid to remind him of the landing traffic. Controller then did a few other things and removed the memory aid and joined the conversation again. Controller then scanned the runway seeing no traffic on it and cleared the next aircraft for takeoff. Traffic was on landing roll and the pilot advised Tower they were still on the runway. Controller told departing aircraft to line up and wait. Controller is aware of distractions and stated that he should have been more attentive to the position.
Narrative: Aircraft X was cleared to land runway 17R at which time I placed the appropriate memory aid device on my runway 17R board. I turned my back on the position to converse in a discussion that was going on behind me. When I turned back to the window I switched another aircraft that was departing runway 8 to Denver departure and inadvertently removed the wrong strip holder which was the memory aid for runway 17R. I turned back to my conversation then noticed I had a departure waiting for runway 17R.I scanned my runway and did not notice any aircraft on the runway and with no memory aid on my board I cleared Aircraft Y for takeoff. Aircraft Y acknowledged the clearance and started to taxi on the runway. Aircraft X was just landing and rolling down the runway. Again I turned back to finish the conversation when Aircraft X replied to the tower that he was still on the runway. Aircraft Y was told to 'Line up and wait'. The pilot of Aircraft Y acknowledged the transmission and said that sounded better. Once Aircraft X exited the runway Aircraft Y was given takeoff clearance and departed.Distractions in the tower are normal everywhere. The Local controller should have been more attentive to the position and if a discussion was needed it should have been conducted once relieved from work duties.
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.