Piper PA-39 Twin Comanche C/R — Supplemental Type Certificate

This document is a Supplemental Type Certificate (STC) for the Piper PA-39 Twin Comanche, detailing approved battery replacements and modifications. It provides essential information for owners and operators regarding eligible battery models and installation requirements. The STC outlines the necessary Concorde part numbers and FAA approval types for various aircraft models, ensuring compliance with aviation regulations. This document is crucial for maintaining the airworthiness of the Piper PA-39 and its variants, offering guidance on battery specifications and installation procedures.

• The document is an STC for the Piper PA-39 Twin Comanche, issued on February 1, 2017.
• It lists eligible battery replacements, including part numbers RG-25, RG-25XC, RG-35A, and RG-35AXC.
• Operators must follow installation guidelines to ensure compliance and safety.
• The document includes FAA approval information for each battery replacement option.
• Contact Concorde Battery Corporation for the latest updates and support regarding battery replacements.