SL-220 Piper Brass Safety Wire

Piper Service Letter No. 220

Applicability: All Piper Models

System: Control

Issue Date: March 29, 1954

Subject: Change to Stainless Steel Safety Wire

Summary: It has been found that the .040" brass safety wire which is being used to safety the propeller hub bolts does not provide a safety that is completely satisfactory.

Open PDF: PIP_SL0220.pdf