Piper Service Letter No. 423
Applicability: PA-22-108 Colts, serial numbers listed below:
- Muffler Support Kit No. 756-803, for serial numbers 22-8000 thru 22-9848
- Tailpipe Support Kit No. 756-804, for serial numbers 22-8000 thru 22-9204
System: Exhaust
Issue Date: May 5, 1964
Subject: Muffler and Tailpipe Support Kits
Summary: Installation of Muffler Support Kit No. 756-803, and Tailpipe Support Kit No. 756-804, will be instrumental in extending the service life of the exhaust system.
Open PDF: PIP_SL423.pdf