Warning to Schweizer 300 pilots

[Aesir]

I was doing some flight instruction in Schweizer 300 today and when we were putting it in the hangar the sun was shining right into the exhaust muffler and I thought it looked weird, so I took a closer look and it turned out that the inside of the muffler was all twisted and bent, and there was only a small hole for the exhaust to come out.

It was only hours from blocking the exhaust completely. It sure was lucky I noticed that. I have read about a accident some years ago exactly for same reason due to the exhaust blocking and the engine loosing almost all power.

Check your muffler!

[Blue Rotor Ronin]

Check my girlfriends muffler on a regular basis, unfortunately though, the sun only shines out of her arse.:ok:

[SASless]

Setting Sun too I bet Blue!

[sprocket]

BRR: Must be a permanent eclipse at my place. I only ever get to see a 'moon'. :ugh:

Aesir: I have seen that prob. in fixed wing mufflers in the past. Thanks for the reminder.

Do you know if it is an original or an after market brand muffler?

[Aesir]

Its the original (exhaust) muffler in a S-300C built 1991.

Yeahh similar has also happened to me in R-22, but that was not as bad, the muffler only deformed because of heat, but in this case the outside looked good and as a part of preflight we always give the muffler a little knock to hear if the filters on the inside are loose, no indication of anything wrong until shine a bright light into it, then you could see the whole thing was a mess and beginning to block the opening.

[Blue Rotor Ronin]

Too right SAS...:ok: