It is Viking Air Claims experience that FOD is the most common cause of damage to these type of engines, therefore VAC often recommend Insurers a survey investigation. After review of strip-down report, and depending on findings by the repair facility, we determine what is related to the insurance incident, and what can be concluded wear and tear/corrosion/S.B iaw manufactures. Betterment calculations on life-limited parts are likewise import to keep in focus. VAC inspections have often reduced repair cost significantly.