The FAA plans to fine United Airlines more than $1.1M for allegedly failing to perform required fire system checks on its Boeing 777s.  The FAA claims United removed a fire system warning check from a preflight checklist and operated more than 100,000 Boeing 777 flights from June 2018 to April 2021 without making sure they were properly maintained for operation. In a statement responding to the FAA’s claims, United said the safety of its flights was never in question. The airline said it changed its preflight checklist in 2018 to account for redundant built-in checks performed automatically by the aircraft. United said the 2018 changes to its preflight checklist were reviewed and approved by the FAA at the time. The airline said it updated its preflight checklist in 2021 when the FAA informed the company that its maintenance program called for preflight checks by pilots. United said it would review the proposed fine.