Piper PA-36 Pawnee Brave — Service Bulletins

This document is an Airworthiness Directive (AD) issued by the FAA for certain Piper Aircraft, Inc. models, specifically the PA-36 series. It supersedes previous ADs related to the PA-36-285, PA-36-300, and PA-36-375 airplanes, focusing on the inspection and replacement of wing spar components to prevent structural failures. The directive outlines compliance requirements, including inspection intervals and life limits for specific parts. It is crucial for maintaining airworthiness and safety in these aircraft models, ensuring that operators are aware of necessary maintenance actions to mitigate risks associated with wing structural integrity.

• Initial inspection of wing spar carry through assembly required within 25 hours TIS or before 2,000 hours TIS.
• Repetitive inspections must occur at intervals not exceeding 100 hours TIS.
• Replacement part number for wing spar assembly is P/N 76824–02.
• Life limits for wing structural components must be adhered to, with specific hours TIS outlined for each part.
• Cost estimates for compliance include $680 for inspections and up to $26,017 for replacements.