What was found
CAPTS MFO BLANKED TWICE WITH AN AUDIBLE POPPING SOUND & OZONE SMELL HSI CB @ E6 HAS POPPED AS WELL.(<P>SWAPPED LOWER EICAS DU WITH CAPT'S HSI DU, SYSTEM CK'S GOOD IAW MM CH 34-22-04. P/N 622-7999-003 S/N 1658 NOW IN CAPT'S EHSI POS. P/N 622-7999-003 S/N 3966 NOW IN LOWER EICAS POS.</P><P>LP 822314, ITEM M5: VERIFIED BURNT SMELL EMITTING FROM CAPT'S EHSI D.U., NO OTHER FUMES OR SMELL OF SMOKE NOTED IAW MM CH 05-51-56.</P>)