What was found
FLT#2009, PBI-LAX. (ETOPS). 'L WSHLD HEAT ( WINDOW HEAT COMPUTERS WHC-1 ); PLACED ON MEL 30-42-01A CAT C, MDDR 579843. MX4 UPDATED. MCC AKEEM NOTIFIED. PLACARD INSTALLED. DEACTIVATED WHC1 AND VERIFIED HEATERS AND FAILURE WARNINGS ARE OPERATIONAL AS PR MEL 30-42-01 (M) PROCEDURES. REACTIVATED WHC1 AND PERFORMED OPS CHECK IAW AMM 30-42-00-710-001-A.SYSTEM CHECKS GOOD,NO HISTORY OF FAULT. MX-4 UPDATED. PLACARD REMOVED,MDDR CLEARED,MCC HANI NOTIFIED.