SDR 96ZZZX3873

Service difficulty report · Stack · Cessna 177B

Difficulty date: July 18, 1996
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N34348
Make and model: Cessna 177B
Aircraft serial: 17701775
System (JASC): 7810 · Engine Collector/Tailpipe/Nozzle
Part: Stack
Condition: Separated
Location: Muffler
Part time: 68 hours
Stage of operation: IN
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EXIT STACK OF MUFFLER SEPARATED FROM THE MUFFLER. APPEARS WELDS MAY NOT HAVE BEEN 'NORMALIZED' CAUSING A BRITTLE AREA AROUND THE WELD. THIS WAS AN FAA/PMA PART. ENGINE SHOWED NO SIGNS OF VIBRATION. EXHAUST EXITED THE MUFFLER INTO COWLING, GASCOLATOR, AND CARBURETOR AREA.

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