likely cause was pilot error by the ground-based pilot, inadvertently shutting down the UAV's engine by failing to follow the checklist. During its operational period, the aircraft flew 959 hours on patrol and played a role in 2,309 arrests. It also contributed to the seizure of four vehicles and of marijuana. A second Predator B, called "CBP-104" (initially referred to as "CBP-102"), was delivered in September 2006 and commenced limited border protection operations on 18 October 2006. The president's FY2006 emergency supplemental budget request added $45 million for the program and the FY2007 Homeland Security Appropriations Bill added an additional $20 million. In October 2006, GA-ASI announced a $33.9 million contract to supply two more Predator B systems by the fall of 2007. On 16 February 2009, the program was further expanded to include patrols of the Canada–US border. On 14 October 2013, an MQ-9 began patrolling the Manitoba portion of the U.S.-Canada border. The UAV is based at Grand Forks Air Force Base and will watch the -long border. The drone will not carry weapons and needs permission to enter Canadian airspace. U.S. authorities fear that drug smugglers, migrants, and terrorists may exploit the long border. The use of the unmanned surveillance aircraft is an enhancement of the partnership between U.S. and Canadian agencies. In January 2014, Customs and Border Protection grounded its UAVs temporarily after an unmanned aircraft was ditched off the coast of California by the operator due to a mechanical failure on 27 January 2014. On 29 May 2020, during the George Floyd protests, CBP flew an unarmed Predator B drone above Minneapolis to watch protesters. The agency said it was at the request of federal law enforcement in Minneapolis. Other users Belgium In January 2018, the Belgian Ministry of Defence reportedly decided on the MQ-9 to fulfill its medium-altitude long-range UAV requirement. Ministry officials stated that a request for information had been sent to potential suppliers of the system, and that they had received responses from all of them. In October 2018, Belgium confirmed its selection of the MQ-9B SkyGuardian variant, adding that it would be considered a "reconnaissance" asset, suggesting it will not be used to carry weapons. In March 2019, the US Department of State approved the sale of four MQ-9B SkyGuardian UAVs to Belgium for $600 million, pending approval by US Congress. In July 2022, work began on adapting the Florennes Air