As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRACKS WERE LOCATED OUT OF THE RADIUS GOING TO A RIVET ON ALL FOUR LOCATIONS OF THE MAIN SPAR WEB ABOVE THE UPPER MAIN SPAR CAP AT FS 154.50. THE FWD AND AFT MAIN SPAR WEB EXTENDS ABOVE THE CAP WHEN IT EXITS THE FUSELAGE AND FORMS A FLANGE WHERE THE UPPER SKINS ATTACH. REPAIR WAS COMPLETED WITH A DER.