As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNSAFE (AMBER LIGHT) INDICATION EXT AT FLAPS 5 POSITION. AFTER EXAMINATION IT WAS DETERMINED THAT L/E FLAP NR 1 FAILED TO EXTEND PROPERLY. AFTER TOUCHDOWN, L/E FLAPS LIGHT TURNED GREEN AND POS IND APPEARED NORMAL. ADJUSTED NR 1 L/E FLAP SWITCH PER MM, CHECKS NORMAL.