Engineering Support

We provide in house engineering services including DER support, repair design, STC coordination, flammability testing, and technical documentation for aircraft interior programs.

Engineering Services for Aircraft Interior Programs

AIRO Industries Company provides engineering support that backs every repair, modification, and refurbishment program we execute. In aircraft interiors, the physical work is only half the job. Every repair needs an approved engineering basis. Every modification needs substantiation. Every material used in the cabin needs documented flammability compliance. And every completed project needs the paperwork that proves it was done right. Without engineering support, even the best shop work cannot be returned to service.

Our engineering team works alongside our production shop to provide the technical foundation for everything from routine component repairs to complex cabin reconfiguration programs. We maintain relationships with FAA Designated Engineering Representatives, coordinate STC and field approval programs, develop repair designs and substantiation data, manage flammability testing and material qualification, and produce the technical documentation packages that operators and regulatory authorities require.

DER coordination and designated engineering services
Repair design, substantiation, and engineering authorization
Flammability testing and material compliance management
Complete technical documentation packages for every program

AIRO Industries Company maintains working relationships with DERs who specialize in aircraft cabin interiors. These are engineers who understand interior structures, flammability requirements, crashworthiness standards, and the specific regulatory framework that applies to cabin components. By coordinating DER involvement early in the program, we avoid late stage surprises and keep projects moving on schedule.

DER SERVICES AND DESIGNATED ENGINEERING

Many aircraft interior repairs and modifications require engineering approval from an FAA Designated Engineering Representative. A DER is an individual authorized by the FAA to approve engineering data, designs, and test results on the agency’s behalf. Without DER approval, certain repairs cannot be signed off, certain modifications cannot be installed, and certain materials cannot be used in the cabin. Waiting for DER availability or working with a DER who is unfamiliar with the project creates delays that push back delivery schedules and increase costs.

DER services include:

DER coordination for interior repair and modification approvals
Engineering data review and approval
Flammability test data approval and sign off
Structural substantiation review for interior components
Crashworthiness evaluation for seat and restraint modifications
Field approval coordination with local FAA offices

REPAIR DESIGN AND SUBSTANTIATION

Not every repair has a published procedure in the OEM structural repair manual or component maintenance manual. When damage falls outside the scope of existing approved data, a new repair design must be developed, substantiated, and approved before the work can proceed. This is especially common in aircraft interiors where cabin components are modified, reconfigured, or repaired in ways that the original manufacturer did not specifically address.

Repair Design services include:

Damage assessment and repair feasibility evaluation
Repair drawing development and drafting
Stress analysis and structural substantiation
Comparative analysis against existing approved repairs
Material and process specification identification
DER approval or FAA field approval coordination

STC AND MODIFICATION SUPPORT

Supplemental Type Certificates are required when an aircraft modification changes the type design in a way that goes beyond what can be covered by a standard repair or minor alteration. In the cabin interior world, STCs are commonly associated with seat reconfigurations, galley repositioning, IFE system installations, bin capacity upgrades, and other changes that affect the aircraft’s approved configuration. STC programs involve engineering, testing, documentation, and FAA certification, and they can be time consuming and expensive if not managed efficiently.

STC and Modification services include:

STC program engineering support and coordination
Installation drawing and instruction development
Conformity inspection support
STC compliance documentation for operator specific installations
Coordination with STC holders and FAA certification offices
Minor alteration and major alteration classification support

FLAMMABILITY TESTING AND MATERIAL COMPLIANCE

Every material installed in an aircraft cabin must meet the flammability requirements defined in FAR 25.853 and associated regulatory standards. Fabrics, foams, laminates, paints, adhesives, and any other material that becomes part of the cabin interior must be tested and documented to prove compliance. This is not optional. An operator cannot return an aircraft to service with interior materials that lack flammability documentation, and a shop that installs non compliant materials puts the operator’s certificate at risk.

Flammability and Material Compliance services include:

FAR 25.853 flammability compliance management
Burn test coordination for fabrics, foams, laminates, and coatings
Heat release and smoke density testing coordination
Material qualification and substitute material approval
Supplier burn test data verification and acceptance
Complete material traceability documentation

TECHNICAL DOCUMENTATION

Technical documentation is the deliverable that ties every interior program together. Without proper documentation, completed work cannot be approved, aircraft cannot return to service, and operators cannot demonstrate compliance to their regulatory authority. Documentation requirements vary by program scope, from simple repair records for component level work to comprehensive data packages for STC installations and major cabin reconfigurations

Documentation services include:

FAA Form 8110-3 approval sheets
FAA Form 337 major repair and alteration records
Repair and modification engineering orders
Material and process specification callouts
Flammability test reports and burn certificates
Weight and balance data for modifications

CABIN LAYOUT AND RECONFIGURATION ENGINEERING

Cabin reconfigurations involve more than moving seats and monuments around. Changing the cabin layout affects emergency evacuation compliance, seat pitch and exit proximity calculations, galley and lavatory service access, floor loading, electrical load distribution, and weight and balance. Each of these considerations requires engineering evaluation to ensure the reconfigured cabin meets all applicable regulatory requirements.

Reconfiguration Engineering services include:

Cabin layout development and optimization
Emergency evacuation compliance evaluation
Seat pitch, exit proximity, and aisle width verification
Floor loading analysis for new monument and seat positions
LOPA development and regulatory submission support
Electrical load analysis for reconfigured galleys and IFE systems

WHY OPERATORS CHOOSE AIRO FOR ENGINEERING SUPPORT

The difference between a smooth interior program and a delayed one is almost always engineering. Missing documentation, unapproved repairs, non compliant materials, and late stage certification issues are the problems that push delivery dates and increase costs. AIRO Industries Company eliminates those risks by integrating engineering into every program from the start, not as an afterthought when something goes wrong.

In-house engineering integrated with production from day one

Established DER relationships for fast approval turnaround

Complete flammability and material compliance management

Audit ready documentation packages delivered with every program

AIRO Industries Integrated Aircraft Interior Capabilities

Frequently Asked Questions

Some frequently asked questions about the service that you may have questions about

Do you have in-house DER capability?
We maintain working relationships with FAA Designated Engineering Representatives who specialize in aircraft cabin interiors. These DERs are coordinated early in each program to review engineering data, approve test results, and sign off on repairs and modifications, keeping projects on schedule.
Can you develop a repair design for damage not covered by the OEM repair manual?
Yes. We develop repair designs for interior components when the damage falls outside the scope of existing approved data. Our engineering team creates repair drawings, performs substantiation analysis, and coordinates the approval through DER sign off or FAA field approval.
Do you provide engineering support for STC installations?
Yes. We provide engineering support for STC programs including installation drawing development, conformity inspection coordination, compliance documentation, and coordination with STC holders and FAA certification offices. We also support operators applying existing STCs to their specific aircraft.
How do you handle flammability compliance for materials?
We manage flammability compliance for every material used in our projects. We source materials with existing FAR 25.853 burn test data, coordinate additional testing when required, verify supplier test reports, and maintain complete material traceability documentation from supplier through production to installed component.
Can you support a cabin reconfiguration program from an engineering perspective?
Yes. We provide engineering evaluation for cabin reconfiguration programs including layout development, emergency evacuation compliance, floor loading analysis, electrical load analysis, weight and balance assessment, and LOPA development. Our engineering team works with operators to ensure the reconfigured cabin meets all regulatory requirements.