As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXTERNAL FUSELAGE SKIN BETWEEN STA 343 AND STA 350, STR-22R, SECTION 41. SHOP FOUND FORE (4) EXISTING BLENDOUTS AREAS NAMED NRC : M0048 AT FUSELAGE SKIN IN THE NOTED LOCATION. THE BLENDOUTS FALL ON FASTENERS ZONE. ACCORDING TO SRM 53-00-01 ALLOWABLE DAMAGE 1, BLENDOUT IS NOT APPLICABLE IN FASTENERS AREA.