AEROSPACE TECHNOLOGIES

Scheduled Maintenance Certain website applications will experience temporary unavailability starting from 9:30 PM EST on March 15th through March 16th 9:00 PM EST, including Technical Publications. We appreciate your patience as we implement exciting enhancements and features to enhance your digital experience with Honeywell.

Scheduled Maintenance On Thursday 04/18 from 4:00 AM to 6:00 AM EST and Friday 04/20 from 1:00 AM to 2:00 AM EST, Technical Publications App will be unavailable as we prepare for the introduction of exciting new features. We appreciate your patience as we strive to enhance the Aero portal experience.

Your browser is not supported.

For the best experience, please access this site using the latest version of the following browsers:

Close This Window

By closing this window you acknowledge that your experience on this website may be degraded.

Increase Time-on-Wing and Lower Fuel Burn

Upgrade Your 131-9A APU with High-Efficiency Mode

Upgrade Now

This upgrade is intended for aircraft operating a 131-9A APU, including Airbus A319, A320, and A321 models. The high-efficiency mode upgrade for 131-9A auxiliary power units for single-aisle Airbus aircraft is expected to increase the average time-on-wing by 1,200 APU flight hours and reduce fuel burn by 2%.

Customers enrolled in Honeywell’s Maintenance Service Plan will have access to the upgrade for no additional cost. This upgrade can be installed during any regularly scheduled maintenance event for all aircraft and does not require additional downtime to implement.

“Now, more than ever, our airline customers are concerned with cost savings and operational efficiency. This upgrade is an easy, one-time modification enabled with software and will be available first for our Maintenance Service Plan customers, and later for all operators of 131-9A units,” - said David Shilliday, Vice President, Engines & Power Systems, Honeywell Aerospace Technologies.

Available Downloads (1)

Infographic: 131-9A Auxiliary Power Unit High-Efficiency Mode

Let's Connect!

Sign up to receive exclusive communications about offerings, events, news, special offers and related topics via email and other forms of electronic communication.