As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDIS 604 32-20 2406601 29APR21 PIT CLOSE. AMBER NLG UP IND CYCLED INTERMITTANTLY ON EICAS WITH CLUNKING NOISE FROM NLG AREA. CYCLED GEAR AND COND. CONTINUED. NO RELEVANT CMC MESSAGES DISPLAYED. FACT 30APR21 18:32 PIT R&R NLG UPLOCK BOX AND UPLOCK PROX SWITCHES IAW AMM 32-33-07. SWUNG GEAR 5 TIMES. ALL INDICATIONS NORMAL WITH NO CLUNKING NOISE. OPS CHECK GOOD. OK FOR SERVICE AT THIS TIME