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The CFM56 engine family
The CFM56 engine family

The CFM56 engine family

Brand:CFM International Model:CFM56

CFM56 Legendary power
Since its introduction in the 1980s, the CFM56 engine product line has continued to serve as the industry benchmark for single-aisle commercial jet engines in terms of reliability, fuel efficiency, time on wing, and overall cost of ownership.

Key figures about the CFM56 Family
Focus on freighters applications

Freighter conversions
480 narrow-body freighters are powered by CFM56 engines, and 60%+ of A321 freighters are powered by CFM56 engines.

Reliability and durability
CFM-powered cargo operations benefit from the industry-leading reliability and durability that the engines provide, along with high performance retention, resulting in lower fuel-related operating costs, longer time on wing and lower maintenance costs. There are more than 1,000 available CFM56 repair processes with commonality across CFM56-5B and -7B engines, which increases the availability of used serviceable material. In addition, there are more than 40 licensed CFM56 MRO shops globally.

CFM56 Legendary power

Since its introduction in the 1980s, the CFM56 engine product line has continued to serve as the industry benchmark for single-aisle commercial jet engines in terms of reliability, fuel efficiency, time on wing, and overall cost of ownership.  

Key figures about the CFM56 Family

CFM56 Applications

With a thrust range from 18,500 to 32,000 pounds, the CFM56 family powers the Airbus A320ceo and the Boeing Next-Generation 737 families of aircraft.

Airbus A320ceo Family

Boeing Next-Generation 737 Family


Focus on freighters applications

Freighter conversions

480 narrow-body freighters are powered by CFM56 engines, and 60%+ of A321 freighters are powered by CFM56 engines.

Reliability and durability

CFM-powered cargo operations benefit from the industry-leading reliability and durability that the engines provide, along with high performance retention, resulting in lower fuel-related operating costs, longer time on wing and lower maintenance costs. There are more than 1,000 available CFM56 repair processes with commonality across CFM56-5B and -7B engines, which increases the availability of used serviceable material. In addition, there are more than 40 licensed CFM56 MRO shops globally.

Frequently Asked Questions

  • What is the typical lead time for gas turbine overhaul services?
    The lead time for gas turbine overhaul services ranges from 6 to 14 weeks, depending on the damage assessment, parts availability, and whether hot-section repairs are required. Expedited options may reduce this by 30%.
  • Do you provide customizations for legacy turbine control systems?

    Yes, we retrofit legacy systems (e.g., GE Frame 5, Siemens V94.2) with modern digital controllers, typically completing hardware integration within 4-8 weeks. Software migration requires additional validation time.

  • How often should industrial gas turbines undergo performance testing?

    We recommend annual performance testing under ISO 3977-2 standards. Critical applications (e.g., offshore platforms) may require semi-annual tests with emissions compliance checks.

  • Are your radiation-hardened (rad-hard) semiconductors compliant with MIL-PRF-38535?

    All rad-hard devices (e.g., FPGA, ADC) are QML Class V certified under MIL-PRF-38535 and tested to MIL-STD-883 Method 1019 for SEU tolerance. Full qualification reports are available upon request.

  • What temperature ranges do your military-grade ICs support?

    Our ASICs and power management ICs operate across -55°C to +175°C ambient temperatures, with derating curves provided in military temperature range (MTR) datasheets.

  • Are PMA parts interchangeable with OEM components?

    Our PMA parts (e.g., actuators, sensors) hold FAA/EASA Form 1 certification and match OEM form/fit/function. Installation requires SB/MB documentation per FAA AC 23.1529.

  • What traceability standards do you follow for aircraft fasteners?

    All NAS/MS fasteners include full DNA traceability: melt source (AMS 2301), heat/lot numbers, and AS9100-compliant MTRs with ultrasonic test reports.

  • How do you handle urgent AOG (Aircraft on Ground) requests?

    AOG orders ship within 4 hours for stocked items (FAA-PMA, EASA Part 21G). Non-stock critical parts trigger priority manufacturing with 72-hour max turnaround.

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