Underwater Locator Beacon (ULB) Service & Repair

Underwater locator beacons (also known as ULBs or black box locator beacons) are the equipment you hope you never need, but are legally required to have. To meet regulatory requirements, your beacon must be in good working order and have a minimum underwater operating life.

GlobalParts can provide operational testing, ULB battery testing, service, repairs and overhauls of several ULB models, including Dukane Seacom ULBs. With over 100,000 in-service units installed on commercial, regional and business aviation aircraft, Dukane ULBs are the industry standard for modern flight and data recorders. These beacons are also standard equipment for every major aviation and military black box manufacturer. If you’re not sure of the maker of your ULB, chances are it’s Dukane.

We offer service for these Dukane ULB models:

ULB Service & Repair Process

Our internal workflow is reliable and efficient to ensure quick processing and customer satisfaction with every job. Our fully stocked onsite distribution center keeps turnarounds tight and costs down. With over 95,000 parts in stock, your service job won’t be slowed down waiting for a part to arrive.

Need aviation spares instead of repairs? We’re committed to carrying the most comprehensive inventory of aviation spares you’ll find anywhere. We have new, used and overhauled ULBs in stock and ready to ship, including the DK120 in a variety of battery options.

The moment we receive your beacon, it’s inspected and verified.

A detailed inspection is performed.

The beacon is serviced, built or repaired, including required testing.
The beacon is thoroughly tested down to the micron and returned to you in top shape.