As an A&P lic technician with over 30 plus years as airlines maintenance manager and director, aircraft leasing and former Lloyds of London post crash claims surveyor and a registered FAA FAR-146 agent of service with FAA FSDO-19 of Miami, Florida, my aviation consulting company stood up in 2003 has one forte that deals with aircraft appraisal for financial institutions and private lenders. Having appraised many Falcon 900 as this Friday 9th Sept to appraise N385FD / sn-227 at KDAL, we could say from a maintenance point of view it’s solid but corrosion does lurk a bit on the hull. The landing gear wells when operating in snow and slush if not maintained corrosion could arise. The nose landing gear trunnions depending on the s/n should be NDT as cracks are known to manifest.