Craig C Cameron Park , CA August 24, 2015 Appliance: Model G.E. ADVANTIUM OVEN MODEL #SCB2001FSS 02 Mica waveguide shield became brittle and shattered I purchase a pre-cut waveguide mica cover from AppliancePartsPro.com for a very reasonable price. Upon delivery, I unpackaged the product and quickly discovered that it would require a minor trimming and puncture a new mounting screw hole. After which, I installed the product within minutes. Problem solved!!!! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes