# Applied Technical Services LLC: FAA repair station HC4D227M

- Type: FAA-certificated repair station (14 CFR Part 145)
- Certificate number: HC4D227M
- Designator: HC4D
- Name on the FAA list: APPLIED TECHNICAL SERVICES LLC
- Address: 214 PELHAM DAVIS CIRCLE, GREENVILLE, SC 29615
- Phone: (864) 675-6060
- Email: mwalton@atslab.com
- Accountable manager: WALTON, MITCH, (864) 675-6300, mwalton@atslab.com
- Liaison: WALTON, MITCH, (864) 675-6300, mwalton@atslab.com
- On the FAA list: On the list of October 26, 2026; listed since October 26, 2026 or earlier (OpenAirDocs’ first copy)
- Service difficulty reports filed: 0
- Source: FAA Find a Facility dashboard, https://www.faa.gov/av-info/facility-dashboard
- Page: https://openairdocs.org/faa-repair-station/HC4D227M/applied-technical-services-llc

The FAA writes names in capitals; the mixed case here is OpenAirDocs'. The dashboard has no certificate dates, and nothing on it shows whether a certificate is in good standing.

## Ratings

- Limited: Nondestructive testing (Nondestructive inspection, testing and processing)

A Limited class covers only the makes and models in the station's operations specifications (14 CFR 145.61), which the FAA doesn't publish.

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