3055161-01 - Pratt and Whitney OEM Igniter For PW100 Engines

3055161-01 – Pratt & Whitney OEM Igniter For PW100 Engines

Available now on the Airparts.aero Marketplace.

Overview

The Pratt & Whitney 3055161-01 is a genuine OEM, high-energy turbine engine igniter, a flight-critical component engineered specifically for the highly successful Pratt & Whitney Canada (P&WC) PW100 family of turboprop engines. This igniter is the final link in the ignition system, responsible for delivering a powerful, high-temperature spark directly into the combustion chamber to ensure reliable light-off of the fuel-air mixture. Manufactured to Pratt & Whitney's exacting standards, the 3055161-01 is built with advanced materials to withstand the extreme temperatures, pressures, and thermal shock of the turbine environment, guaranteeing the reliability required for high-cycle regional airline operations.

Key Features

• High-Energy Surface Gap Design: Utilizes a semi-conductor/surface gap firing tip. This design allows the high-energy (Joule) discharge from the exciter to ionize a path across the tip's surface, resulting in a massive, high-current plasma arc that is highly effective at igniting atomized jet fuel under a wide range of atmospheric conditions.
• Advanced Alumina Ceramic Insulator: The core of the igniter is a high-purity alumina ceramic insulator. This material provides superior dielectric strength to prevent high-voltage flashover at altitude and offers exceptional thermal conductivity and resistance to thermal shock.
• High-Temperature Superalloy Construction: The body and shell of the igniter are machined from a high-strength, nickel-based superalloy, providing robust resistance to the extreme temperatures and corrosive environment of the turbine combustor.
• Hermetic Sealing: Features a proprietary hermetic seal, typically using glass and metal, to prevent the leakage of high-pressure combustion gases past the igniter. This is critical for protecting the ignition lead and exciter from damage and ensuring engine performance.
• Genuine P&WC OEM Part: As a genuine Pratt & Whitney Canada part, it guarantees the precise performance, service life, and material specifications required by the engine's original Type Certificate, ensuring the highest level of safety and reliability.

Technical Specifications

• Part Number: 3055161-01
• Component Type: High-Energy Turbine Engine Igniter Plug
• Firing End: Surface Gap, Solid Electrode
• Insulator Material: High-Purity Alumina Ceramic
• Shell Material: High-Temperature Nickel-Based Superalloy
• Application: Pratt & Whitney Canada PW100 Series Engines
• Certification: FAA / TCCA Production Approval

Aircraft Compatibility

The 3055161-01 igniter is specified for use on an extremely wide range of regional turboprop airliners powered by the Pratt & Whitney Canada PW100 engine family. It is essential to consult the specific engine's Illustrated Parts Catalog (IPC) for final verification.

• Primary Engine Models:
  • Pratt & Whitney Canada: PW118, PW120, PW121, PW123, PW127, PW150 series
• Common Aircraft Platforms:
  • ATR: 42, 72
  • De Havilland Canada: DHC-8 (Dash 8) 100/200/300/400 series
  • Embraer: EMB 120 Brasilia
  • Fokker: 50
  • Bombardier (Canadair): CL-215T / 415

Applications

The 3055161-01 has a singular, flight-critical application:

• Engine Start Ignition: Delivers the electrical spark from the ignition system directly into the engine's annular combustion chamber to initiate light-off. Two igniters are typically used per engine for redundancy and to ensure rapid and symmetrical flame propagation.
• Scheduled Maintenance Item: A life-limited component that must be inspected and replaced at specified service intervals to ensure continued ignition system reliability and prevent start-related issues and delays.

Why Choose 3055161-01?

The dispatch reliability of a regional airliner is paramount. The ability to reliably start an engine, on the ground or for an in-flight relight, is a critical safety function. The Pratt & Whitney 3055161-01 is the OEM-certified component designed and tested by the engine manufacturer to perform this task flawlessly. Its advanced materials and surface-gap design are engineered to resist the fouling and erosion that would destroy lesser igniters. For a component this vital to engine operation, there is no substitute for the proven performance and certified quality of a genuine P&WC part.

Order Your 3055161-01 Igniters Now

Ensure reliable starts and protect your turbine engine with genuine, factory-certified components. Visit Airparts.aero to order your Pratt & Whitney 3055161-01 igniters today.

The 3055161-01 igniter operates as part of a high-energy capacitor discharge ignition system. An exciter box converts the aircraft's DC power into high-voltage DC to charge a storage capacitor. Upon command, this capacitor discharges its entire energy load (measured in Joules) through a specialized ignition lead to the 3055161-01 igniter. The igniter's surface-gap design features a low-resistance semiconductor material between the electrodes. The high-voltage pulse ionizes this material, creating a path for a very high-current, short-duration plasma arc. This arc is significantly hotter and more powerful than a conventional spark, ensuring it can reliably ignite the high-velocity, atomized fuel spray within the combustor, even under the adverse conditions of a high-altitude or cold-weather start.

Note: This is a high-voltage, flight-critical engine component. Installation and handling must be performed by a certified A&P or AME mechanic with experience on turbine engines, in strict accordance with the current Pratt & Whitney Canada engine maintenance manual. The ignition system carries lethal voltages and must be fully de-energized and grounded before any maintenance is performed.