Piper PA-34 Seneca V — Service Bulletins

This service bulletin, issued by Piper Aircraft, Inc., mandates a one-time inspection of the main wing spar at the main landing gear truss bracket for the Piper PA-34 Seneca V and other affected models. The bulletin addresses potential cracks that may develop in the main wing spar due to wear and stresses at the interface with the main landing gear. Compliance is mandatory for aircraft that have reached 2,000 hours of time in service, and the inspection must be completed during the next scheduled maintenance event, not exceeding 100 hours of flight time. The document provides detailed instructions for conducting eddy current inspections, cleaning procedures, and reporting requirements to Piper Aircraft.

• Compliance is mandatory for aircraft with 2,000 hours TIS or more.
• Eddy current inspections must be performed by qualified personnel.
• Surface imperfections must be cleaned using specific methods before inspection.
• Any cracks found must be reported to Piper Aircraft immediately.
• Replacement hardware must conform to specified sizes and tolerances.