** Shares of aerospace components supplier Melrose Industries MRON.L fall 14% to 548p; top loser on FTSE 100 index .FTSE
** Flags softer-than-expected revenue for 2026 as sector-wide supply chain constraints persist
** Sees 2026 group revenue of 3.75 billion pounds ($5.06 billion) to 3.95 billion pounds vs analysts' estimate of $4.01 billion pounds, according to data compiled by LSEG
** Says U.S. tariffs and ongoing supply chain bottlenecks continue to add complexity, contributing to its downbeat revenue forecast
** Brokerage JP Morgan says "2026 EBITA guidance below consensus but entirely due to FX"
** YTD, MRON down 1.34%
($1 = 0.7411 pounds)
(Reporting by Megha Anilkumar Nair)
((MeghaAnilkumar.Nair@thomsonreuters.com;))