Narrative:

During an annual inspection I found both engines had a stc of bracket induction air filters installed with an FAA form 337 not on record or addressed in the logbooks. I performed a conformity inspection and filed an FAA form 337. However, I was unable to obtain a pair of the proper filter elements from my supplier. I instructed the owner to obtain the elements before they expire at the end of the month.

Google
 

Original NASA ASRS Text

Title: AN AUTH INSPECTOR FOUND WHEN MAKING AN ANNUAL INSPECTION OF A C310 THAT AN STC FOR DIFFERENT INDUCTION AIR FILTERS HAD NOT BEEN RECORDED WITH THE FAA OR SHOWN IN THE ACFT LOGBOOKS.

Narrative: DURING AN ANNUAL INSPECTION I FOUND BOTH ENGS HAD A STC OF BRACKET INDUCTION AIR FILTERS INSTALLED WITH AN FAA FORM 337 NOT ON RECORD OR ADDRESSED IN THE LOGBOOKS. I PERFORMED A CONFORMITY INSPECTION AND FILED AN FAA FORM 337. HOWEVER, I WAS UNABLE TO OBTAIN A PAIR OF THE PROPER FILTER ELEMENTS FROM MY SUPPLIER. I INSTRUCTED THE OWNER TO OBTAIN THE ELEMENTS BEFORE THEY EXPIRE AT THE END OF THE MONTH.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.