As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VNAV GROSSLY MISCALCULATED THE DESCENT PATH ON THE ARRIVAL & CALCULATED A PATH SO STEEP THE A/C HAD TO DESCEND 5000 FPM TO MAINTAIN THE CALCULATED PATH THIS WAS ALSO WHEN THE A/C SHOULD HAVE BEEN ATTEMPTING TO SLOW FROM 280 TO 250 KNOTS. PERFORMED FMCS BITE PROCEDURE IAW AMM 34-21 TAK 801 NO CURRENTLY ACTIVE FAULTS NOTED A/C GOOD FOR SRVICE