As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FRAME AT BS 550A RT BETWEEN STRINGER 8R AND 9R IS CRACKED AT AIR CONDITIONING OUTLET EXTRUSION SUPPORT BRACKET INBD ATTACH FASTENER CRACK. NOTED DURING ACCOMPLISHMENT OF STEP 4 OF EA 5310-04716, REV C, MFEC. REPAIRED IAW EA 5310-04716 REV C, OP 1.