As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUBMITTING REPORT ON BEHALF OF CERTIFICATE HOLDER: THE GASCOLATOR IS LOCATED ON LOWER SIDE OF COWLING AND STICKS OUT TO MAKE ACCESS EASY FOR PREFLIGHT FUEL SUMP TO BE PERFORMED. AT SOME POINT THE GASCOLATOR WAS HIT/JARRED WHICH ALLOWED IT TO MOVE SLIGHTLY AND ALLOW A SMALL AMOUNT OF AIR TO GET IN. GASCOLATOR WAS CHECKED AND RE-SAFETY WIRED AND HAS BEEN PROBLEM FREED SINCE.