Piper PA-31P Pressurized Navajo — Weight And Balance

This document provides detailed installation instructions for the C&D Associates, Inc. rear heater kit designed for various models of the Piper PA-31 series, including the PA-31P Pressurized Navajo. It outlines the necessary preparations, installation steps, and operational checks required to successfully install the heater system. The instructions emphasize adherence to FAA regulations and the importance of ensuring that the aircraft conforms to its original Type Certificate. The document also includes a section on weight and balance considerations related to the installation of the new heater, ensuring that pilots and maintenance personnel can maintain compliance with safety standards.

• The new heater kit weighs 43 lbs and must be accounted for in the aircraft's weight and balance calculations.
• Installation must comply with FAA regulations and the aircraft's original Type Certificate.
• Operational checks after installation include verifying the heater's functionality and checking for fuel leaks.
• A weight and balance check is mandatory if the old heater is removed.
• Documentation such as FAA Form 337 must be completed and recorded in the aircraft's logbook.