As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EICAS STATUS MESSAGE OF ENG REVERSER L DISPLAYED UPON ARRIVAL. FOUND MAINT MESSAGE 78-51821 T-R POS TRANSDUCER (RT SLEEVE) (LT ENG CHAN B) SIGNAL OUT OF RANGE. DEFERRED. COMPLIED WITH. REPLACED RT SLEEVE RVDT IAW FIM. REVERSER FAILED WITH MSG 78- 61811 (CHANNEL A & B DO NOT AGREE) REPLACED RT SLEEVE RVDT AGAIN . OPS CHECKED GOOD.