ATC controllers and small aircraft pilot reported a miscommunication between local and ground contro...

Attributes
ACN	1669463
Time
Date	201907
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Helicopter
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	None
Flight Plan	VFR
Aircraft 2
Make Model Name	Small Aircraft Low Wing 1 Eng Retractable Gear
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Route In Use	None
Flight Plan	VFR
Person 1
Function	Ground
Qualification	Air Traffic Control Developmental
Person 2
Function	Supervisor / CIC Local
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Conflict Ground Conflict Critical Deviation - Procedural Published Material / Policy Ground Incursion Runway
Miss Distance	Horizontal 50 Vertical 100

Narrative:

I was working ground control; flight data; clearance delivery. I had aircraft X taxi from the east to west ramp via bravo and hold short of runway xxl approach end. I coordinated crossing with local via tvs [tower voice switch]. I crossed aircraft X and gave hold instruction of runway xxr at victor. Local had a helicopter high on final. Local coordinated crossing observed and gave a crossing on runway xxr/V; I just responded roger. I crossed aircraft X; still on a taxi speed. Local did point out the helicopter high on final and had his memory aid for crossing. I noticed that the helicopter was still on short final. I advised local that aircraft X is crossing. We should always use proper coordination; read back and be specific and don't assume.

Original NASA ASRS Text

Title: ATC Controllers and small aircraft pilot reported a miscommunication between Local and Ground Control that resulted in a critical ground conflict.

Narrative: I was working Ground Control; Flight Data; Clearance Delivery. I had Aircraft X taxi from the east to west ramp via Bravo and hold short of Runway XXL approach end. I coordinated crossing with local via TVS [Tower Voice Switch]. I crossed Aircraft X and gave hold instruction of Runway XXR at Victor. Local had a helicopter high on final. Local coordinated crossing observed and gave a crossing on Runway XXR/V; I just responded roger. I crossed Aircraft X; still on a taxi speed. Local did point out the helicopter high on final and had his memory aid for crossing. I noticed that the helicopter was still on short final. I advised local that Aircraft X is crossing. We should always use proper coordination; read back and be specific and don't assume.

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.

ATC controllers and small aircraft pilot reported a miscommunication between local and ground control that resulted in a critical ground conflict.