At around 2 p.m., the truck caught fire during what was described as a routine annual meter inspection by New York State Weights and Measures technicians. It involved the transfer of 100-octane aviation gasoline between internal tanks on the truck. As testing concluded and fuel was being returned to the tank, vapors emitted from the truck were ignited by a spark caused by static electricity.
Technicians on site extinguished the flames using a dry-chemical extinguisher. The Fire Department arrived within 15 minutes and cooled the tank with water. There were no injuries, no fuel was spilled, and the fire remained fully contained to the truck’s tank.
Source: https://www.easthamptonstar.com/police-courts/202559/fuel-truck-fire-airport-quickly-extinguished