As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER PUTTING FLAP LEVER TO 5 THE FLAPS DID NOT EXTEND. WE NOTICED A VERY SMALL SPLIT IN THE TRAILING EDGE FLAPS. LE DEVICES WERE EXTENDED WITH THE ALTERNATE FLAP SWITCH PER QRH. THE LANDING WAS NORMAL AND UNEVENTFUL. R&R #8 FLAP SKEW SENSOR PER AMM 27-59-01.