STS-LM
Network of On-Call & Scheduled Line Maintenance Services

Without delay… that’s how STS Line Maintenance services commercial and regional airlines operating out of U.S.-based major airports. We can do it, and do it efficiently, because our team has established a network of dependable line maintenance technicians who know your aircraft and understand the AOG cost of delayed response times.


Skilled mechanics stand ready to handle RON maintenance, turn-around checks, non-routine discrepancy reports and ground equipment maintenance via schedule service or on-call action. Either way, you get priority one status!


At STS Line Maintenance, our main concern is, and always has been, the safety of your aircraft. We mandate compliance with all corporate, federal and local safety standards, and we make certain work is not just done but done properly.


A reputation for safety standards compliance, prompt service and highly skilled aircraft mechanics is precisely the reason why we’ve been the recipient of the FAA Diamond Award for aviation maintenance training!

Service Capabilities

Line Maintenance Support Services – STS has web-based work order systems specific to each airline and uniform processes at every location. Experienced technicians are fully qualified for the troubleshooting and repair of all designated aircraft systems including avionics and autopilot.


Overnight Maintenance Check Services – STS is able to support any specific check routine required, and we can incorporate base maintenance into overnight check services.


DER and Engineering Support – Through a variety of parent partnerships, we have the flexibility to rapidly fulfill the need for engineering support on most commercial airframes.


AOG Response Teams – Through these same parent partnerships, we can rapidly deploy the AOG teams needed for specific projects such as engine changes, hard landing inspections and most other specialized aircraft recovery requirements.

Value-added Benefits

With STS Line Maintenance, you don’t simply get aircraft maintenance and repair services, you get the know-how and expertise that comes from STS Aviation Group, the company with “Solutions to Keep You Flying!”

When we’re faced with hard-to-find parts for repairs, we turn to STS Component Solutions. And when engineering support is needed, we call on the certified DERs at STS Engineering Solutions. We can also get a qualified team of experts to your out-of-way location faster than any other aircraft maintenance firm in the business! This fact rings true because STS AeroStaff Services has already recruited skilled mechanics, and they’re ready to roll when you need them.

The bottom-line difference is this… We’re not simply a line maintenance company, we’re the line maintenance company who can supply every solution you and your business need to keep flying!

Successful Partnerships

In January 2009, a major airline relying on STS to handle all of its Philadelphia line maintenance needs achieved a 100% on-time departure status with zero maintenance delays. Another airline enjoyed the three-month early completion of a major modification project performed on half of their fleet during overnight service checks thanks to the efficient teamwork of STS Line Maintenance, STS Component Solutions as well as the technicians working with STS AeroStaff Services. Impressive? Maybe… but these are only two of our countless success stories.

Key Personnel

With over 120 years of combined experience, the STS Line Maintenance management team has a long history of success. It’s a team with FAA Airframe & Power Plant Certificates and pilot licenses, most of whom come from heavy line maintenance backgrounds. We thoroughly understand the importance of having a line maintenance partner who’s there when you need them – and we prove it by continually giving our customers count-on-us confidence.