What was found
IAD INFLIGHT - LEADING EDGE SLATS WOULD NOT EXTEND. LANDED AT IAD WITHOUT INCIDENT DUE TO LONGER RUNWAY. REPLACED NUMBER FOUR LEADING EDGE RETRACT SENSOR. SYSTEM GROUND CHECKED NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
IAD INFLIGHT - LEADING EDGE SLATS WOULD NOT EXTEND. LANDED AT IAD WITHOUT INCIDENT DUE TO LONGER RUNWAY. REPLACED NUMBER FOUR LEADING EDGE RETRACT SENSOR. SYSTEM GROUND CHECKED NORMAL OPERATION.