As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING COMPLIANCE WITH AD 82-27-03 AND AFTER REMOVING THE EXHAUST HOUSING OF THE TURBOCHARGER, A CRACK, APPROXIMATELY .75 INCH LONG, WAS NOTED IN THE WEB AREA NEAR THE INLET. PARAGRAPH J OF THE AD STATES THE 200-HOUR REPETITIVE INSPECTION REQUIREMENT IS RELIEVED IF THIS PART NUMBER IS INSTALLED. CRACKS OF THIS NATURE ARE ALLOWABLE IN THE OTHER CASTINGS OF EARLIER MANUFACTURE. SINCE NO DATA WAS AVAILABLE ON THIS P/N, IT WAS REPLACED.