PWA87782 is a P3 air pressure test adapter used for aviation maintenance and troubleshooting. It enables technicians to connect a pressure testing instrument to the P3 air pressure test point for accurate pressure readings during inspections, diagnostics, and performance verification. Key Features Reliable test-point connection: Designed to securely interface with the P3 air pressure location for stable measurements. Accurate pressure readings: Helps ensure consistent data when verifying system operation. Maintenance and diagnostics use: Supports troubleshooting and condition checks as part of standard service procedures. Professional aviation tool: Built for the repeatable, controlled workflows required in engine maintenance. Application Used in maintenance tasks requiring P3 air pressure testing, such as system verification and fault diagnosis where pressure measurement at the P3 point is required.