Geg tower controller working all tower positions combined instructed an aircraft to hold its positio...

Attributes
ACN	1398021
Time
Date	201610
Local Time Of Day	0601-1200
Place
Locale Reference	GEG.Tower
State Reference	WA
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Make Model Name	Large Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Route In Use	None
Flight Plan	IFR
Aircraft 2
Make Model Name	Large Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Local Ground Flight Data / Clearance Delivery Supervisor / CIC
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (mon) 6
Events
Anomaly	ATC Issue All Types Conflict Ground Conflict Critical Deviation - Procedural Published Material / Policy

Narrative:

I was working flight data; ground control; local control and controller in charge combined. Runway 3 and taxiway a were not visible from the tower. I had multiple aircraft requesting taxi at the same time. Aircraft X was cleared for takeoff on runway 3. There was an aircraft taxiing to runway 3 followed by aircraft Z who reported aircraft a in sight. I told aircraft Z to report passing taxiway T7. Aircraft Y called to taxi and I meant to ask them if they had aircraft Z in sight but instead read aircraft X's call sign. Aircraft X said they did not have aircraft Z in sight and I said to hold position; still thinking I was talking to aircraft Y. Aircraft X said they were canceling their takeoff and exiting at taxiway A5. Aircraft X said they were behind aircraft a on taxiway a. I then verified aircraft a was number one; followed by aircraft X; aircraft Z; and then aircraft Y. This was an error on my part for reading the wrong call sign. I think I looked at aircraft X's strip as I was trying to talk to aircraft Y instead.

Original NASA ASRS Text

Title: GEG Tower Controller working all Tower positions combined instructed an aircraft to hold its position. The Controller meant to issue the instruction to a taxiing aircraft; but mistakenly issued it to an aircraft beginning its takeoff roll.

Narrative: I was working Flight Data; Ground Control; Local Control and Controller in Charge combined. Runway 3 and Taxiway A were not visible from the tower. I had multiple aircraft requesting taxi at the same time. Aircraft X was cleared for takeoff on Runway 3. There was an aircraft taxiing to Runway 3 followed by Aircraft Z who reported Aircraft A in sight. I told Aircraft Z to report passing taxiway T7. Aircraft Y called to taxi and I meant to ask them if they had Aircraft Z in sight but instead read Aircraft X's call sign. Aircraft X said they did not have Aircraft Z in sight and I said to hold position; still thinking I was talking to Aircraft Y. Aircraft X said they were canceling their takeoff and exiting at taxiway A5. Aircraft X said they were behind Aircraft A on taxiway A. I then verified Aircraft A was number one; followed by Aircraft X; Aircraft Z; and then Aircraft Y. This was an error on my part for reading the wrong call sign. I think I looked at Aircraft X's strip as I was trying to talk to Aircraft Y instead.

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.

Geg tower controller working all tower positions combined instructed an aircraft to hold its position. The controller meant to issue the instruction to a taxiing aircraft; but mistakenly issued it to an aircraft beginning its takeoff roll.