As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT ENGINE LOWER AFT COWLING, LWR DUCT FOUND CRACKED ABOUT 80 PERCENT ITS ENTIRE WIDTH ALONG FIRST RIVET ROW. REMOVED CRACKED DUCT AND FOUND NOT TO BE ROLLED ENOUGH. THIS PUT STRESS ON RIVET ROW. NEW SPARE PART ORDER FROM MFG WAS ROLLED CORRECTLY AND FIT WITHOUT STRESS. (K)