Two asheville tower controllers reported of problems with ground vehicles entering the ILS critical ...

Attributes
ACN	1395998
Time
Date	201610
Local Time Of Day	1201-1800
Place
Locale Reference	AVL.Airport
State Reference	NC
Environment
Flight Conditions	IMC
Aircraft 1
Make Model Name	Small Transport
Flight Phase	Final Approach
Flight Plan	IFR
Person 1
Function	Flight Data / Clearance Delivery Ground
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 2
Person 2
Function	Local Supervisor / CIC
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (mon) 1 Air Traffic Control Time Certified In Pos 1 (yrs) 1
Events
Anomaly	ATC Issue All Types Conflict Ground Conflict Less Severe Deviation - Procedural Clearance Ground Incursion Runway

Narrative:

I was on ground control/flight data and called ground 2 to have them stop all crossings in the ILS critical area. They answered and said they would stop and also informed me that they were the crossing guard on the north which is not what I had been instructed. I was briefed that all crossing guard 1s were on the north and all 2s were on the south. I then called ground 1 to have them stop all crossings across the ILS critical area. After four tries; the crossing guard finally answered and said copy that.at the time we had 3 aircraft within 15 miles of the airport being sequenced for the ILS approach due to fog. As the first aircraft comes in; I see him at about 400 feet AGL and then I see a large yellow construction dump truck coming through the ILS critical area. I immediately called ground 1 and verified that all crossings were stopped. She replied that all crossings are stopped and 4 or 5 seconds later replied all crossings are now stopped as the dump truck exited the ILS critical area.the crossing of the ILS critical area has been a huge help in relieving the frequency congestion for the ground/clearance delivery position. But the crossing guards need to be made aware of what damage they could cause if we are IFR with an aircraft on final and they are still crossing after being told to stop.

Original NASA ASRS Text

Title: Two Asheville Tower Controllers reported of problems with ground vehicles entering the ILS Critical Area when traffic is on final. Controllers contacted proper authorities; but vehicles continued to enter the area.

Narrative: I was on ground control/flight data and called ground 2 to have them stop all crossings in the ILS critical area. They answered and said they would stop and also informed me that they were the crossing guard on the north which is not what I had been instructed. I was briefed that all crossing guard 1s were on the north and all 2s were on the south. I then called ground 1 to have them stop all crossings across the ILS critical area. After four tries; the crossing guard finally answered and said copy that.At the time we had 3 aircraft within 15 miles of the airport being sequenced for the ILS approach due to fog. As the first aircraft comes in; I see him at about 400 feet AGL and then I see a large yellow construction dump truck coming through the ILS critical area. I immediately called ground 1 and verified that all crossings were stopped. She replied that all crossings are stopped and 4 or 5 seconds later replied all crossings are now stopped as the dump truck exited the ILS critical area.The crossing of the ILS critical area has been a huge help in relieving the frequency congestion for the ground/clearance delivery position. But the crossing guards need to be made aware of what damage they could cause if we are IFR with an aircraft on final and they are still crossing after being told to stop.

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.

Two asheville tower controllers reported of problems with ground vehicles entering the ILS critical area when traffic is on final. Controllers contacted proper authorities; but vehicles continued to enter the area.