What was found
(CAN) DURING ROUTINE 50 HR INSP, BROKEN CYLINDER HOLD DOWN STUD FOUND SITTING IN BOTTOM OF ENGINE COWLING. LATER INVEST., BROKEN STUDS ORIG LOCATION LOCATED ON FRONT INNER CYLINDER OF RT ENGINE. UPON CONSULTATION WITH AERO RECIP ENGINES OF WINNIPEG, MANBITOBA, REMOVAL OF CYLINDER COMPLETED FOR FURTHER INVEST. ONCE REMOVED, IT FOUND THAT BROKEN STUD NOT THROUGH BOLT BUT NORMAL SHORT STUD. ANY FURTHER DISCUSSION ABAUG FURTHER REPAIRS OF HOLD DOWN STUD HALTED ONCE LARGE CRACK OF AT LEAST 6 IN FOUND AHEAD OF AFFECTED CYLINDER ON CRANK CASE. CRACK WOULD POSSIBLY NOT HAVE BEEN DETECTED AS IT NOT AL ALL CLEARLY VISIBLE UNTIL REMOVAL OF CYLINDER.