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AEROSPACE TECHNOLOGIES
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131 Series Auxiliary Power Units
131 Series APUs
The 131 family of auxiliary power units (APUs) is one of the most successful of all time, with more than 100 million hours of in-service use.
The 131-9 auxiliary power unit (APU), previously designed for the Boeing MD-90 aircraft, gained an immediate following. With the introduction of the 131-9B it became standard equipment on the Boeing B737NG family of aircraft, as well as the with the introduction of the 131-9A as airline selectable on the Airbus A320 family. It was then also chosen for the Bombardier C-Series.
It’s easy to understand its popularity. The 131-9 introduced a two-stage axial turbine for longer engine life and a single starter/generator that uses electrical power to start the APU, and then becomes a generator once it’s running. This has led to the 131 Series becoming one of the most successful APUs with more than 100 million hours of in-service use.
NOW AVAILABLE – 131-9A Load Compressor Seal Upgrade
We are excited to offer A320 series operators a new Load Compressor Seal upgrade for your 131-9A APU. This upgrade is designed to reduce potential oil leakage paths that may result in APU removals.
Benefits include:
- An improved passenger experience thanks to reduced possibility of in-cabin odor events.
- Up to 4% lower cost per maintenance hour, with an average 200 hour increase for APU time on wing (based on historical removal rates)
- Reduced maintenance tasking and resourcing for troubleshoots
- Ability to reuse the Load Compressor seal after full tear down at the next shop visit
The upgrade includes a two-piece seal rotor package and bellows seal. Contact your salesperson for pricing.
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Press ReleaseHoneywell Upgrade For Aircraft Auxiliary Power Unit Lowers Fuel Consumption And Co2 EmissionsImprovements to the 131-9B APU enable more efficient operation and new savings for operators of Boeing 737 aircraft.
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BlogMore Power, Greater Fuel Efficiency and Smaller Environmental FootprintHoneywell has released a High Efficiency Mode (HEM) upgrade for the 131-9A Auxiliary Power Unit for Airbus Single Aisle aircrafts. Upgrade now!
