Piper PA-32 6X / 6XT — Airworthiness Directives

This service letter, numbered 1346, addresses maintenance alerts for various Piper aircraft models, specifically focusing on the PA-32 series, including the Piper 6X and 6XT. It outlines the inspection procedures required for the main wing spar attachment to the spar box, emphasizing the importance of these inspections to maintain structural integrity. The letter provides detailed instructions on how to perform visual, eddy current, and fluorescent penetrant inspections, along with compliance timelines and necessary precautions. It is intended for maintenance personnel and aircraft owners to ensure safety and compliance with FAA regulations.

• Models affected include PA-32-301FT (Piper 6X) and PA-32-301XTC (Piper 6XT).
• Compliance is required whenever bolts are removed from the main wing spars.
• Inspection methods include visual, eddy current, and fluorescent penetrant inspections.
• Flight with known structural cracks is prohibited.
• Contact Piper Aircraft for any inspection findings or questions.