Maintaining for the future for more than 90 years
Excellent service, compliant technical support and proven reliability – that’s what you get when you work with the engine shop at our San Francisco Maintenance Base. Our engine shop offers complete maintenance, repair and overhaul (MRO) services, as well as advanced computer-controlled testing and on-wing repair. Our technicians have vast experience on many products, and have built a legacy of delivering quick turn times, technical expertise and renowned quality and safety on all of their work.
- With United as the launch customer for the Boeing-777 aircraft, United Technical Operations’ experience with the PW4000-112" engine is unequaled. We are the only MRO facility in the United States equipped to work on this engine type.
- In the past 20 years, United Technical Operations has overhauled more than 1,000 large- and small-fan PW4000-series engines.
- United Engine Maintenance (SFO/CHS) was awarded the 2011 Outstanding Supplier Award for our F117 support.
- We have the leading ring-case modification facility.