As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FRAME AT STATION 400 RT BETWEEN STRINGER 8R AND 9R IS CRACKED AT AIR CONDITIONING OUTLET EXTRUSION SUPPORT BRACKET OTBD ATTACH FASTENER. CRACK NOTED DURING ACCOMPLISHMENT OF STEP 4 OF EA 5310-04716, REV C, MFEC REPAIRED FRAME AT STATION 400 RT BETWEEN STRINGER 8R AND 9R IAW EA 5310-04716, REV C.