Nav-Aids ADA139-612 Air Data Accessories Kit – Agusta AW139, AW169 & AW189 Aircraft

The Nav-Aids ADA139-612 Air Data Accessories Kit is a complete pitot-static test solution designed specifically for the Agusta AB139 helicopter. It provides everything technicians need to test the full pitot and static air data system from source – including adapters, hose assemblies, pre-test probes, lubricating fluid, and a seal kit. The kit also supports pre-testing of all adapters and hoses before they are fitted to the aircraft, helping to confirm system integrity before testing begins.

The ADA139-612 is engineered specifically for the Agusta AB139 helicopter, and is also compatible with the AgustaWestland AW139, AW169, and AW189 variants. The adapters are designed to fit the 0856WD pitot probes located on the nose of these aircraft. Technicians working across multiple Agusta rotorcraft platforms will find this kit covers a broad range of related airframes.

The PSS88139-3-4-4 Pitot & Dual Static Test Adapter is designed to fit directly onto the 0856WD pitot probes on the nose of the AB139 helicopter. Once installed, the adapter isolates the aircraft's pitot and static systems, allowing them to be tested separately or simultaneously – giving technicians flexibility depending on the test procedure. Two adapters are included in the kit to support testing of both probe locations.

Yes! The PSS88139-3-4-4 Pitot & Dual Static Test Adapter allows each system to be isolated and tested separately or simultaneously, depending on maintenance requirements. This flexibility is particularly useful when troubleshooting a specific system without disturbing the other, or when a full combined test is needed to confirm overall air data system performance. The dual-mode capability helps streamline testing across a range of maintenance scenarios.

The PT421-8139 Pre-Test Probe is used to verify the integrity of the pitot and dual static test adapters, hose assemblies, and test set before connecting to the aircraft. When inserted into the adapter, the pre-test probe simulates the pitot head — allowing technicians to confirm that the test equipment itself is leak-free and functioning correctly. Two pre-test probes are included in the kit, one for each adapter.

The AB139-7270 Pitot Test Hose Assembly connects to the pitot inlet of the adapter and includes the pitot hose connection point for the pneumatic generator. The AB139-5160 Static Test Hose Assembly attaches to the static outlets on the adapter and also includes the connection for the pneumatic generator's static hose. Together, these assemblies create a complete pneumatic circuit between the test unit and the aircraft's air data system.

The ADA139-612 is compatible with a range of pitot-static test units, including the Laversab 6300-W. The hose assemblies included in the kit are designed to interface with standard pneumatic generator connections, making the kit adaptable to most professional pitot-static testers used in rotorcraft maintenance. Always confirm compatibility with your specific test unit before use.

The LF5050 Lubricating Fluid is included to lubricate the glands of the pitot and dual static test adapters, helping to ensure a proper seal during testing. It is recommended that a small amount of fluid be applied to the pitot probes before installing the adapters – this reduces friction and helps protect the sealing surfaces. Proper lubrication is a critical step for maintaining test accuracy and prolonging the service life of the adapters.

The SK8139 Seal Kit contains two complete sets of spare seals for the pitot and dual static test adapters, stowed directly in the kit case for immediate access. Seals should be inspected regularly and replaced if there is any sign of wear, damage, or leakage during pre-testing – a compromised seal can affect test accuracy and introduce errors into pitot-static system verification. Having spare seals on hand means maintenance teams can address seal failures on the spot without delaying testing.