Air Traffic Control Developmental
Air Traffic Control Time Certified In Pos 1 (yrs) 0
Communication Breakdown
ATC Issue All Types; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Runway
Air Traffic Control Issued New Clearance; Flight Crew Returned To Clearance
Procedure; Human Factors
Runway 12 was in use and Aircraft X requested Runway 21L for departure. Aircraft X called for taxi. I needed to hold them for crossing traffic on taxiway Echo. When I could taxi them I did. My phraseology was Aircraft X; Runway 21 Left taxi via Charlie; Hold short of Runway 12. Aircraft X read back the clearance with the hold short instruction. I observed Aircraft X taxiing too fast approaching Runway 12 and told them to stop. When Aircraft X stopped; the nose and part of the front wheels were passed the hold lines. I received a runway crossing clearance from Local Control 1 and had Aircraft X cross Runway 12.After Aircraft X had permission to cross Runway 12; they asked; why the quick stop? I advised them that they had a hold short instruction. They replied that they had read back cross runway 12 on the taxi instruction. After verifying with the tapes; the pilot did indeed read back the hold short instructions. My only recommendation would be better active listening.
Flight delay in excess of two hours due to low oxygen in R hand bottle; First flight of day 4 in the trip. Taxi Aircraft to get serviced at FBO maintenance across runway 12. Normal taxi. Planned single engine turn upon return. Found out the night prior to departure scheduled FAA line check in the morning which caused both crew members additional pressure and been discussed repeatedly prior to flight. Upon finishing Single engine turn; requested taxi. Ground control instructs hold position. We hold.After receiving Taxi clearance we begin taxi; FO says: lights on; cleared to cross then shortly after Ground control calls: Aircraft X- stop! I bring Aircraft to immediate stop before hold short line and request additional information from ATC. We receive further ground taxi instructions. Perform First flight of the day runup and depart normally. Normal flight and landing in ZZZ.Ask for 2nd crossing authorization prior to any runway crossing just to make sure on the same page with ground control. Asking twice never hurts and could have prevented this event.
PRC Ground Controller and pilots reported a runway incursion. Aircraft was initially told to hold short; but they read back cross which was not corrected by ATC.