Aircraft Modification & Certification Engineering
Project Engineering
STS Engineering Solutions supports aircraft engineering design, integration and regulatory certification for almost any modification to an airframe or component.
Ability to Leverage all Divisions of STS Aviation Group to Offer “Turnkey” Solutions
- Materials, kitting and fabrication
- MRO Facilities
- Working Parties
Aircraft Cabin Interiors
Aircraft Cabin Interiors
- Layout of Passenger Accommodations (LOPA)
- Passenger Service Unit (PSU) Layouts
- Monument Modification, Design and Installation
- Seat Changes
- Escape Path Lighting, Floor Covering, & Carpet Modifications
- Emergency Equipment Layouts (EEL) – Installation/Modification
- Placards & Markings
- Soft Furnishing Changes
- Flammability Testing Services
- Crew Accommodations (Supernumeraries and Crew Rests)
- Fleet Standardization Support
Aircraft Structural Modifications:
Aircraft Structural Modifications:
- Fuselage Penetrations
- Antenna installations
- Cabin Floor Structural modifications
- Monument & Seat track Requirements
- Monument Provisions
- De-Mod of structures/systems
Exterior Modifications
Exterior Modifications
- Livery Changes
- Branding Changes
- Temporary Registration
- Technical Markings
Avionics Modifications:
Avionics Modifications:
- Wi-Fi Installations & In-Flight Connectivity (IFC)
- Tracking Systems and ADS-B Out
- In-Flight Entertainment (IFE)
- In-Seat Power (ISP)
- Communications Modifications
- Galley inserts
FAA DAR Services
FAA DAR Services
- Aging Aircraft Inspections
- Standard or Amended Airworthiness and Experimental (R/D) Certificates
- Special Flight Permits (SFP)
Approvals
Approvals
STS Engineering Solutions approvals cover a wide range of support, including but not limited to:
- Major/Minor Repair(s)/Alteration(s)
- Fatigue & Damage Tolerance
- FAA Supplemental Type Certificate (STC)
- DER Compliance Test Witness
- FAA Parts Manufacturer Authorization (PMA)
- RS-DER Repair Specification(s)
FAA
FAA
- Documents engineering approvals in the strictest accordance with the CFRs
- CFR 1.1 Defines “Major Alteration” and “Major Repair.”
- CFR 43 Appendix A further details the definitions of Major Repairs and Major Alterations, giving specific examples.
- CFR 43 Appendix B details recording requirements for Major Repairs and Major Alterations.
- CFR 121.379(b) requires that Major Repairs and Major Alterations are accomplished in accordance with approved data.
- AC 43-210A Determination of Major or Minor Alteration or Repair OR the Customer’s Major / Minor Logic Chart incorporated within the Customer’s GMM
CAA / EASA
CAA / EASA
- STS Engineering Solutions holds a CAA Part 21 Subpart J Design Organization Approval. Approval No. UK.21J.1005.
- All repairs and modifications issues under STS Engineering Solutions’ P21-J DOA are accepted on all EASA registered aircraft without further validation.
| Request Type | Definition | STS Response (within) | Repair Disposition or Repair Data Delivery (TAT) |
|---|---|---|---|
| AOG | Aircraft is currently out of revenue service and will not return to scheduled revenue service without immediate maintenance action. | 15 Minutes | 1-6 Hours |
| Critical | Aircraft may be forced into unscheduled maintenance or may not meet scheduled return to service. | 15 Minutes | 2-24 Hours |
| Standard | Maintenance action is required during a scheduled maintenance visit. | 1 Hour | A "requested by" date will be provided by the operator or the maintenance facility. Requested by dates should be prioritized by the maintenance facility based on production schedule. Dispositions or repair data will be delivered on or before the request by date. |
| Projects | Aircraft modifications required or requested by the Buyer | Will coordinate with the Buyer’s leadership and Fleet Management | Projects will be completed on or before the required date per FAA mandates or by the Buyer’s requested schedule. |