As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: CORROSION BOLT ATTACHMENT SLAT TRACK 9 FWD POSITION ON LH WING L= 0.256 IN W= 0.1030 IN D= 0.002 IN. MAINTENANCE REPLACED BOLT ATTACHMENT SLAT TRACK 9 FWD POSITION ON LH WING, THE INSTALLATION PROCEDURE IS DOCUMENTED ON JOB CARD 26C51057005 AND AMM 27-84-66-400-002-A STEP 4.B.