What was found
(CAN) CRACK & FAILURE OF FLANGE OF BACKING PLATE THAT HAS BLADE ROOT CLOSING FAIRING ATTACHED.A PORTION OF FAIRING REMAINED ATTACHED TO SPINNER WHICH SEVERELY DAMAGED NOSE BOWL FAIING LEAVING BACKING PLATE&FAIRING DEBRIS INSIDE ENGINE COWL.THERE WAS SOME MINOR DAMAGE TO PROP BLADES ABOUT FOOT FROM ROOT. SPINNER REMAINED ATTACHED&SECURE: CRACK APPEARED TO BEGIN NEAR FWD EDGE OF FLANGE OF BOTH BACKING PLATE&FAIRING ATTACHMENT. PERHAPS ABOUT 1/2 INCH&REST OF FAILURE APPEARED TO HAVE BEEN EXTREMELY RAPID.