SB-153A Piper PA-22 Brake Master Cylinder Diaphragm

Piper Service Bulletin No. 153A

Applicability: Piper PA-22 serial numbers 22-1 thru 22-7999

System: Brake

Issue Date: November 21, 1960

Subject: Brake Master Cylinder Diaphragm

Summary: Failures of the diaphragm in the B711 Scott Master Cylinder used on the PA-22 Tri-Pacer within 300 or 400 hours of operation.

Open PDF: PIP_SB153A.pdf