As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH THE T/E FLAPS DID NOT FULLY DEPLOY. L/E SLATS OPERATED NORMALLY. *S/D* AN INSPECTION FOUND THE ACTUATING (ADJUSTMENT) ROD INSIDE THE INTERCONNECTING STRUT BETWEEN THE LT I/B AND O/B FLPS HAD ORIGINALLY BEEN ADJUSTED ALMOST OUT OF LIMIT, CAUSING THE PROX SENSOR OUT OF TARGET WHILE EXTENDINGG FLAP TO HIGHER SETTING. THE ROD WAS FINALLY EXTENDED TO ALLOW MORE MARGIN IN THE PROX TARGET RANGE.