What was found
INSPECTION REVEALED TOP SIDE SKIN OF RIGHT AILERON CRACKED. REPLACED AILERON WITH SERVICEABLE AILERON WHILE ORIGINAL IS REPAIRED. SUBMITTER STATED IT APPEARED THE CRACK MAY HAVE BEEN THE RESULT OF AN IMPROPERLY INSTALLED OR SECURED EXISTING SURFACE DOUBLER. BEECHCRAFT RECOMMENDED THE APPLICATION OF SURFACE STRUCTURAL EPOXY WHEN APPLYING DOUBLERS TO AILERONS (EA 9309).