GE90

The GE90 engineWatch

Powering the twin-engine Boeing 777 aircraft, the GE90 engine combined record thrust and high reliability with lower noise, emissions, and fuel consumption to become an iconic jet engine recognized worldwide for its size and innovations.

Maturation at its finest

GE Aerospace has continued to invest and improve the engine. GE Aerospace engineers have enhanced the GE90-115B engine’s compressor, combustor, and high- and low-pressure turbine components to reduce weight, improve fuel efficiency, and enhance durability.

3.6% reduction in fuel burn from initial launch specification
60% improvement in time on wing
World-class 99.98% reliability rate

Service anywhere
you need care

With more than 2,800 GE90 engines delivered around the world, GE Aerospace and its global network of maintenance, repair, and overhaul (MRO) providers are anywhere that our customers need support. Through GE Aerospace’s TrueChoice engine services suite, GE90 operators have access to MRO options that can optimize the engine to meet a desired life cycle with targeted workscopes, optimizing hardware utilization and minimizing cost of ownership.

GE90-94B engine

Rated at 94,000 lbs. of thrust, the GE90-94B engine builds on the proven success of the early GE90 engine models to power the Boeing 777-200 and 777-300 aircraft.

GE90-115B engine

After being selected by Boeing to develop an engine with 110,000 to 115,000 lbs. of thrust, GE Aerospace delivered the GE90-115B engine, which now powers the longer-range Boeing 777-200LR, 777-300ER, and 777 Freighter aircraft.

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.