PA-46-600TP — Piper Aircraft PA-46-600TP

This document is a service letter from Piper Aircraft, Inc., specifically addressing tire pressure maintenance for multiple aircraft models, including the Piper M600. It provides updated tire inflation pressures and guidelines for maintaining proper tire pressure, which is crucial for safe aircraft operation. The letter emphasizes the importance of checking tire pressure daily before the first flight and outlines the acceptable pressure ranges for various models. It also includes instructions for incorporating this information into the Pilot's Operating Handbook (POH) and highlights the need for compliance with the new guidelines. This service letter is intended for aircraft owners, maintenance personnel, and pilots to ensure safety and proper maintenance practices.

• Tire pressure for Piper M600 should be 88 psi (max) for the nose gear and 95 psi (max) for the main gear when loaded.
• Tire pressure should be checked daily before the first flight, or before each flight if flown less than once a day.
• Aviation tires can lose up to 5% of pressure in a 24-hour period without requiring inspection.
• Proper tire maintenance is crucial for safe ground steering and overall aircraft safety.
• Adjust tire pressure for ambient temperature changes, especially when traveling between locations with significant temperature differences.