Narrative:

4th leg ending in 12 hour duty day with early shows first 2 days. Everything fine on taxi-entered run-up area as instructed by ground with approximately 10 min clearance release. At 9 min mark ground control instructed aircraft Y to move up to hold short and contact tower. Aircraft Y not in run-up area. Queried ground if that was for aircraft X and they replied negative. Happened a second time with same results. Ground control then asked if aircraft X was in run-up area and we said yes and were given instructions to move to hold short of runway 23 and monitor tower. Tower was having trouble with landing clearance instructions with a small civilian cessna approximately 7 miles from runway 23. Tower then told aircraft X to take it on the roll runway 23 with the civilian cessna 4 miles out. I started to move forward and just crossed the hold short; stopped; and asked my partner if we had take-off clearance. He queried tower who hesitated and then asked if we could hold short. He replied we had crossed the hold short. Tower issued a go-around to the cessna @ approximately 3 miles and the cessna reported that he had our aircraft in sight. 20 seconds later; tower issued us a take-off clearance and we departed uneventfully. On take-off the cessna was still outside 2 miles and tower never queried us or asked for any additional information.

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Original NASA ASRS Text

Title: CE-560XLS Captain reported ATC issuing a pseudo takeoff clearance using nonstandard phraseology that caused the pilot to stop and clarify after crossing the hold short lines.

Narrative: 4th leg ending in 12 hour duty day with early shows first 2 days. Everything fine on taxi-entered run-up area as instructed by ground with approximately 10 min clearance release. At 9 min mark ground control instructed Aircraft Y to move up to hold short and contact tower. Aircraft Y not in run-up area. Queried ground if that was for Aircraft X and they replied negative. Happened a second time with same results. Ground control then asked if Aircraft X was in run-up area and we said yes and were given instructions to move to hold short of Runway 23 and monitor tower. Tower was having trouble with landing clearance instructions with a small civilian Cessna approximately 7 miles from runway 23. Tower then told Aircraft X to take it on the roll runway 23 with the civilian Cessna 4 miles out. I started to move forward and just crossed the hold short; stopped; and asked my partner if we had take-off clearance. He queried tower who hesitated and then asked if we could hold short. He replied we had crossed the hold short. Tower issued a go-around to the Cessna @ approximately 3 miles and the Cessna reported that he had our aircraft in sight. 20 seconds later; tower issued us a take-off clearance and we departed uneventfully. On take-off the Cessna was still outside 2 miles and tower never queried us or asked for any additional information.

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.