As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS LANDING FLAPS ONLY EXTENDED TO 15 WHEN SELECTED MORE THAN 15. MAINTENANCE RESET C/BS AT P6-2 C/B A11 AND P6-4 C/B D14 EXTENDED FLAPS AND SLATS, OPS CK NORMAL. ACCOMPLISHED FSEU BITE IAW FIM 27-51-00-810-801. OPS CHECK NORMAL.