As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FINAL APPROACH, FLAPS WOULD NOT EXTEND BEYOND 35 DEGREES TO THE NORMAL 39 DEGREES, NOR COULD THE FLAPS RETRACT. LANDING WAS UNEVENTFUL. IT WAS LATER DISCOVERED THAT HORIZ STAB ACT (WHICH BEGINS TO MOVE HORZ STAB DOWN WHEN FLAPS GO BEYOND 10 DEGREES) WOULD SEIZ AND BIND AT 33-35 DEGREES. LACK OF LUB (UNIT CAN NOT BE LUBRICATED-SEALED UNIT) SEVERE INTERNAL CORROSION.