Small Aircraft; Low Wing; 2 Eng; Retractable Gear
Air Traffic Control Developmental
Communication Breakdown
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Runway
General None Reported / Taken
Procedure; Human Factors
I was working Ground Control. We received a call that a helicopter declared an emergency about 10 miles southwest of the field and was making a straight approach to Runway 4 to get on the ground ASAP. After the aircraft touched down; Runway 4/22 was closed due to the disabled aircraft and Airport Operations and ARFF vehicles responded to the aircraft. Aircraft X called for taxi instructions. He was issued his squawk code and instructed to taxi to Runway 18L and to cross Runway 9 and hold short Runway 18L. At the same time; another aircraft was inbound with an emergency; an aircraft without any hydraulic power and I was trying to coordinate with another ARFF vehicle holding short of Runway 18L. Other aircraft were calling for taxiing instructions and clearances; as well as Flight Data and CIC relaying information to me about the emergencies. As I was talking to the ARFF vehicle; an Aircraft X crossed Runway 18L without clearance and Local Controller had to send another aircraft around. After trying to call the Aircraft X prior to going onto the actual runway and then again after he got off; he responded. After listening to the tapes; it was evident that the Aircraft X did read back the appropriate taxi instructions but never used his call sign. Even with the circumstances that were occurring with 2 emergencies and runway closures and all vehicles trying to coordinate and request to assist; as well as other aircraft calling; it is no excuse to miss a read back instruction. Once I read the taxi instruction to the Aircraft X; I should have kept my focus in hearing the read back instead of getting side-tracked with other requests and coordination. I will work harder to make sure the aircraft does use the call sign when reading back hold short instructions a little more closely and this won't happen again.
Ground Controller reported a runway incursion event during multiple emergency events when he failed to use proper phraseology/procedures with a read back.