What was found
CAPT'S MCDU BUTTON L6 INOP. VERIFIED FAULT. REPLACED CAPT FMC KEY BOARD WITH SERVICABLE ONE. ACCOMP KEY BOARD TEST & CDU LAMP TEST BOTH TEST PASS REF M/M 34 61 01 400 801.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CAPT'S MCDU BUTTON L6 INOP. VERIFIED FAULT. REPLACED CAPT FMC KEY BOARD WITH SERVICABLE ONE. ACCOMP KEY BOARD TEST & CDU LAMP TEST BOTH TEST PASS REF M/M 34 61 01 400 801.