As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TOILET FLUSH SYSTEM DOES NOT FLUSH FWD LH LAV A THIS IS 2ND LAV NOT OPERATING. INDIC. IS RED ON TANK ON FA SCRE EN AFT. SERVICED LAV SYSTEM, RESET LAV FLUSH MODULE ON BOWL. SYSTEM OPS CHECK NORMAL 10 CONSECETIVE FLUSHES. REF AMM 38-32-00