AeroStrata provides design and certification support for aircraft modifications, with a focus on structural provisions and avionics-integrated systems. We support fixed-wing and rotary-wing aircraft under TCCA AWM 523, 525, 527, and 529, and deliver complete data packages suitable for STC, LSTC, and major modification approvals in Canada.

About Us

Based in Ontario and Quebec, Canada, AeroStrata is an independent aviation engineering consultancy specializing in modifications and certification services. With over a decade of experience supporting STCs, LSTCs, and major mods on DHC-8's, CRJ's, King Airs, Bell 206 and 407, AS350, EC130, AW139, and many more.

Why AeroStrata

We assist MROs, DAOs, operators, and mod kit developers to deliver approved design changes for their customers at a competitive cost. We are a small expert-level team that is capable of executing quickly and efficiently to minimize aircraft downtime.

Design & Engineering

We develop certifiable, installation-ready solutions with an emphasis on manufacturability and compliance. Here are some of the engineering services that we provide:

  • Antenna structural provisions, including: on-site surveys to determine optimal locations, mounting bracket design, and doubler reinforcements.

  • LRU installation provisions, including: equipment trays, avionics racks, partitions, and brackets.

  • Structural interfaces for avionics controllers and LRUs.

  • Field surveys, detailed measurements, and 3D scanning.

  • Complete installation and fabrication drawing packages prepared for installation, manufacturing, and aircraft-level conformity.

  • Wiring diagrams and cable routing diagrams (as applicable).

  • Flight test engineering support (as applicable).

Certification Documentation

All documentation is structured to meet CAR 521, AWM standards, and TCCA expectations for approval. Typical documentation packages include:

  • Certification Plan – Scope definition and compliance strategy.

  • Compliance Report – Regulatory traceability and substantiation reference.

  • Engineering Drawings – Install and manufacturing-level data, conformity-ready.

  • Structural Substantiation – Load analysis, margins of safety, fatigue (if applicable).

  • System Safety Analysis – As per AWM §5XX.1309 requirements.

  • ICA (Instructions for Continued Airworthiness) – Scheduled inspection and maintenance program to support continued airworthiness.

  • Flight Manual Supplement – Limitations, placards (as required).

  • Weight & Balance Amendment– Revised equipment list and CG calculations.

  • MSI 53 Structural Impact – Acceptability of supplemental Instructions for Continued Airworthiness (ICA).

  • ELA (Electrical Load Analysis) – As applicable for equipment integration.

  • Wire Routing / Diagrams – As applicable for equipment integration.

  • Flammability Data – Required for cabin or internal material changes.

  • Test Plans & Reports – When operational validation is required.

  • Conformity Checklists – Drawing references for installation inspections.

STC Approvals

We provide a liaison between TCCA and experienced Canadian DARs to approve modifications quickly and with minimal TCCA LOI.

Who We Support

  • Maintenance and avionics shops without internal engineering.

  • Operators requiring support or documentation for STC approvals.

  • STC holders and DAOs in need of overflow engineering or certification support.

  • Utility, law enforcement, and special mission aircraft.

  • Projects requiring reliable, certification-ready structural and avionics installations.

Need Engineering or Certification Support?

From sheet-metal antenna mounts to complete STC data packages, AeroStrata delivers low-cost, practical solutions backed by real-world experience.

Request a quote today at quotes@aerostrata.ca.

Engineering & Certification Services for Aircraft Modifications
quotes@aerostrata.ca