There's more detail in this article:
According to the Nantucket Current, accusations against Walsh include:
- In 2018, left a damaged aircraft on the runway, an airplane seat on the taxiway and a passenger in the aircraft
- Landing his aircraft at least 24 times in the summer of 2021 without permission
- Taxiing across a grass island on the airfield
- Urinating on the airfield in front of three airport employees and dumping a full urinal on airfield grass.
- Flew into the airport using an aircraft owned by a different pilot and did not radio to airport operations for parking.
Previously, Walsh operated an air charter service called Nantucket Express from 2005 to 2019 and had airport credentials while operating this service. According to the Nantucket Current, he was reportedly involved with multiple safety and security incidents at the airport between 2018 and 2019, resulting in the FAA revoking his air carrier certificate in Jan. 2020.
Walsh states that the airport is operating outside of its jurisdiction with its attempts to ban him from the airfield. He told the Nantucket Express that the former airport managers, Tom Rafter and Noah Karberg, were harassing him and accused Karberg of lying under oath. Walsh plans to appeal the decision by the court.
"The last two airport managers were just lying and trying to keep me from flying, unsuccessfully, too. I've been flying for the past three years, and the FAA knows I've been flying for the past three years," said Walsh. "And they have not stopped me, or they have not made me stop flying. I will continue to keep flying, but not into Nantucket Airport because of this one judge, or now it's two judges, that believe their lies."