Ce-560XLS captain reported ATC issuing a pseudo takeoff clearance using nonstandard phraseology that...

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.

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.

Attributes
ACN	1534339
Time
Date	201804
Local Time Of Day	1801-2400
Place
Locale Reference	MMU.Airport
State Reference	NJ
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Citation Excel (C560XL)
Operating Under FAR Part	Part 135
Flight Phase	Takeoff
Aircraft 2
Make Model Name	Cessna Aircraft Undifferentiated or Other Model
Flight Phase	Final Approach
Person 1
Function	Captain Pilot Flying
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy Ground Incursion Runway

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.