As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RELIEF VALVE FOR BLEED AIR PNEUMATIC SYSTEM END WASHER AND CAP SEPARATED FROM VALVE AND LAYING IN BOTTOM OF COWLING. SUSPECT RIVET HOLDING PARTS ON IS TOO SOFT. THIS IS THE THIRD VALVE TO FAIL LIKE THIS ON DIFFERENT AIRCRAFT IN THE LAST MONTH. AND ALL WERE NEW WITH LESS THAN 70 HOURS TIME IN SERVICE. (K)