We have completed the production and delivery of aviation engine tooling, Part No. CFM56-856A3760G05, designed for the assembly and disassembly of Stage 2 Low Pressure Turbine (LPT) nozzle segments.

CFM56 Engine 856A3760 is a Boeing 856 series aircraft-specific tooling/connector part number, belonging to the special connection/adapter parts for thrust reverser systems/hydraulic lines, and is compatible with the engine thrust reverser hydraulic systems of Boeing 737/757/767 and other models.

This equipment is used during aviation maintenance operations to remove or install Stage 2 LPT nozzle segments within the LPT case. It is configured as a dedicated fixture for assembly/disassembly (ASSY/DISASSY) and is intended to support standard engine maintenance procedures.

P/N 856A3760G05 for CFM56 Engine

The tooling consists of two main components: a pre-assembly tool and a removal/installation tool. In operation, nozzle segments are first positioned on the pre-assembly tool. The removal/installation tool then engages the nozzle segment slots using gripping fingers, allowing controlled installation into or removal from the LPT case.

P/N : CFM56-856A3760G05 Details

The overall dimensions of the equipment are 35 inches in diameter and 30 inches in height (889 mm × 762 mm), with a total weight of 331 lb (150 kg).

P/N : CFM56-856A3760G05 Details

The tool is used in conjunction with the following supporting equipment:

P/N 856A3761: Tool for installation of LPT Stage 2 outer air seal

P/N 856A3762: Fixture for assembly/disassembly of LPT rotor/stator

For storage, a light coat of oil is to be applied to all unprotected surfaces as part of routine maintenance.

P/N : 856A3760G05 Details

In terms of functional positioning, part number 856A3760 shares certain similarities in design concept and application scenarios with part number 856A3763. Both belong to the same series of critical components, maintaining consistency in structural form and performance requirements. By contrast, 856A3760 has been specifically optimized in terms of interface design and adaptation configuration to meet the practical requirements of different aircraft models or installation locations.

                                  P/N : 856A3760 for CFM56 Engine                         P/N: 856A3763 for CFM56 Engine   

The successful delivery of this aviation engine tooling highlights the strong capabilities of Shanghai Junxun Aviation in aerospace tooling design and manufacturing. Looking ahead, we remain committed to advancing high-performance solutions for the aviation industry, supporting safer, more efficient, and more reliable engine maintenance operations worldwide.

Shanghai Junxun Aviation Technology Company always keep the idea that "Quality is Our Life", committed to providing professional products and excellent services to the global aviation industry.

As the global aviation industry continues to grow, Shanghai Junxun Aviation will persist in its commitment to innovation and quality, providing more international customers with high-quality products and services.

*The following are the engine tool for different airline series Junxun Aviation can manufacture: 

Civil Narrow-Body Aircraft Engines：

1. CFM International (GE + Safran)

CFM56 Series

CFM56-7B: Boeing 737NG (856A dedicated model)

CFM56-5A/5B/5C: Airbus A320ceo, A340-200/300

LEAP Series

LEAP-1A: Airbus A320neo series

LEAP-1B: Sole power for Boeing 737 MAX

LEAP-1C: C919

2. Pratt & Whitney (PWA)

PW1000G (GTF) Series (Gear-Driven Fan)

PW1100G-JM: Airbus A320neo

PW1500G: Airbus A220 (formerly Bombardier C Series)

PW1900G: Embraer E-Jet E2 V2500 Series (IAE Alliance, Pratt & Whitney-led)

V2500-A5: Airbus A320ceo, A321ceo

3. Others

PD-14 (Russian United Engine): Equipped with MC-21

Please feel free to contact us if you are interested or have any other needs.