SB-50 Piper J-2 thru J-5 Ribstitching

Piper Service Bulletin No. 50

Applicability: Piper E-2, J-2, J-3, J-4 and J-5

System: Finishing

Issue Date: February 19, 1946

Subject: Ribstitching

Summary: Reported failures of the ribstitching both in the wing and control surface covering which may result in the fabric being torn from the structure while in flight.

Open PDF: PIP_SB50.pdf