As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAPS PRIMARY AND FLAPS DRIVE EICAS DURING FLAP EXTENSION.(<P>FLIGHT CREW REPORTED THAT LEFT INBOARD LEADING EDGE FLAP GROUP DID NOT EXTEND. CMC INDICATED LEADING EDGE FLAP DRIVE PDU L4 FAULTED. REPLACED PDU L4 AND ALL OPS CHECKS SATISFACTORY.<BR /></P>)