As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 100 HOUR INSPECTION, AILERON CABLE WAS BEING REPLACED. FOUND FLAP DIRECT CABLE NOT SAFETIED. THIS CABLE IS LOCATED BEHIND HEADLINER. IT WOULD HAVE NEVER BEEN DETECTED IF HEADLINER WAS INSTALLED. SUBMITTER RECOMMENDED ACCESS PLATE TO INSPECT CABLES DURING ROUTINE INSPECTION.