Piper Service Letter No. 155
Applicability: Piper PA-18 serial numbers 18-60 thru 18-275 with exceptions
Issue Date: July 14, 1950
Subject: Muffler Tailpipe Shroud
Summary: Carburetor air take-off tube on the muffler tail pipe shroud has been cracking at the weld, resulting in partial loss in carburetor heat.
Open PDF: PIP_SL155.pdf