Special Airworthiness Information Bullitin
 

Many of you have probably already seen this but I thought it would be a good idea to post it for those that may have not seen it. Not an AD but a SAIB and deals with a subject that everyone should take a good look at your mufflers on the front of normally aspirated Skymasters.

Cost for replacement front mufflers are less than $750.00.

http://www.aopa.org/aircraft/article...WT.mc_sect=gan