Piper PA-30 Twin Comanche — Service Bulletins

This Service Bulletin from Piper Aircraft Corporation addresses issues related to the stabilator torque tube bearing block attachment fitting rivet replacement for several aircraft models, including the Piper PA-30 Twin Comanche. It provides critical information regarding inspection procedures for stabilator movement and noise, which may indicate a need for further action. The bulletin is effective as of April 20, 1974, and outlines compliance requirements for affected aircraft during the next 100-hour or annual inspection. The document serves as a guide for maintenance personnel and aircraft owners to ensure the safety and reliability of the stabilator assembly.

• Models affected include PA-30 Twin Comanche and others.
• Compliance is required at the next 100-hour or annual inspection.
• Inspect stabilator for movement and noise as per instructions.
• Contact Piper Aircraft if movement or noise is detected.
• No materials are required for the inspection.