The FBI held a passenger for questioning Wednesday when he tried to check in at Hilo Airport luggage containing what appeared to be a modified pressure cooker.
The item was found during a Transportation Security Administration screening.
On April 15, two bombs made from pressure cookers killed three people and injured 260 on at the Boston Marathon.
In Wednesday’s case in Hilo, authorities did not arrest or charge the man with any crimes and he was released.
The FBI did seize some contents of the man’s luggage in addition to the pressure cooker.
No explosives were found in the luggage or on the passenger, the FBI said.
“The pressure cooker will undergo FBI analysis,” a written statement from the FBI said.
“The FBI does not believe that this incident poses any imminent threat to civil aviation based on our limited investigation thus far,” the FBI said.
FBI Special Agent Tom Simon would not provide the passenger’s age, where he lives or any further details on the case.