As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNIT SMOKING AND EMITTING "BURNING" SMELL. THIS UNIT WAS REMOVED FROM NR M910CS. THE CAUSE OF FAILURE IS ASSIGNABLE TO AN INTERNAL COMPONENT FAILURE Q14 LOCATED ON THE CPU ASSY. ENGINEERING HAS BEGUN A FAILURE ANALYSIS TO IDENTIFY THE ROOT CAUSE. SIMILAR COMPONENTS HAVE BEEN SENT TO THE MFG TO ANALYZE THE PARTS TO SEE IF THEY ARE BUILT IAW SPECIFICATION AND DO NOT PRESENT ANY FORM OF LATENT DEFECT. OPEN