As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THREADS BROKEN AND SUBSEQUENT SEPARATION OF THE BOWL AT GASCOLATOR ON THE NEW 172R DURING DISMANTLING ON THE FIRST 100 HOUR INSPECTION. INTERNAL INSPECTION HAS REVEALED THAT ONLY TWO THREADS WORKED FROM STANDPIPE 0756036-2 AND TOP ASSY 0756039-6. AIRWORTHINESS WAS RESTORED BY REPLACING THE FULL ASSY 'FUEL STRAINER ASSY' 0756039-7 SUPPLIED. ALSO THE NEW FUEL STRAINER FEATURES ONLY TWO THREADS WORKING.