As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN FLAPS 5 WERE SELECTED, THEY STOPPED AT 1.5 DEGREES. LOWERED TO 15 DEGREES WITH ALTERNATE FLAPS SWITCH. AN EMER WAS DECLARED & THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. REPLACED FSEU IAW AMM 27-51-01. ACCOMPLISHED ALL INSTALLATION TEST. NO SYS FAULTS. OK FOR SERVICE. THE ACFT WAS NOT GNDED.