Beechcraft 33 Debonair — Parts Catalog

This Service Bulletin, issued by Raytheon Aircraft Company, addresses mandatory inspections and repairs for the Beechcraft 33 Debonair and related Bonanza models. It specifically focuses on the wing forward spar carry-thru structure, which has been identified as susceptible to cracking. The bulletin outlines the inspection process, compliance requirements, and necessary repairs using specific kits. The revisions made in June 2004 emphasize the removal of previously allowable crack limits and mandate immediate repairs for any discovered cracks. This document is crucial for owners and operators to ensure the safety and airworthiness of their aircraft by adhering to the outlined inspection intervals and repair protocols.

• Mandatory inspection of wing forward spar carry-thru structure within first 1500 flight hours.
• If no cracks are found, re-inspect every 500 flight hours.
• Repairs must be made using applicable P/N 36-4004 Kits if cracks are discovered.
• Cracks exceeding 4.0 inches in length require immediate repair before further flight.
• Compliance with this Service Bulletin is required to maintain airworthiness.