As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FRAME AT STA 500C, LEFT BETWEEN STRINGER 8L AND 9L AT AIR CONDITIONING OUTLET EXTRUSION SUPPORT BRACKET INBD ATTACH FASTENER. CRACK NOTED DURING ACCOMPLISHMENT OF STEP 4 OF EA 5310-04716, REV C. MFEC INSTALLED REPAIR ANGLES AND SUPPORT BRACKET IAW 5310-04716, REV C APPLIED CIC IAW EA 5310-04716, OP 1.