Transport Canada Certified Services

AEROSPACE
CERTIFICATION SIMPLIFIED.

Gritzeal delivers end-to-end PDA, PMA, and STC services for Canada's aviation industry — with the speed of a startup and the precision of engineers.

PDA· Product Design Approval· PMA· Parts Manufacturer Approval· STC· Supplemental Type Certificate· Transport Canada· Engineering Disposition· Corrosion Repair· AMO Support· PDA· Product Design Approval· PMA· Parts Manufacturer Approval· STC· Supplemental Type Certificate· Transport Canada· Engineering Disposition· Corrosion Repair· AMO Support·
3+
Core Certification Pathways
TC.
Transport Canada Compliant
1×
End-to-End Partner. No Hand-offs.
What We Do

OUR
SERVICES

01 /
PDA
Product Design Approval

Full support for obtaining Transport Canada design approval on new or modified aeronautical products. We handle documentation, compliance, and submission — start to finish.

  • Design data package preparation
  • Compliance matrix development
  • TC liaison and submission management
  • Airworthiness standards interpretation
02 /
PMA
Parts Manufacturer Approval

Comprehensive guidance through the approval process for replacement and modification parts — from initial analysis through Transport Canada approval.

  • Eligibility and applicability analysis
  • Test and computation documentation
  • Identicality and modification path support
  • Quality system alignment
03 /
STC
Supplemental Type Certificate

End-to-end STC services for modifications to type-certificated aircraft, engines, and propellers. Specializing in corrosion findings and structural engineering dispositions.

  • Corrosion repair engineering disposition
  • Structural modification approval
  • Flight manual supplement preparation
  • Instructions for continued airworthiness
Why Gritzeal

BUILT BY
ENGINEERS.

We're not consultants who learned the regulations — we're aerospace engineers who've worked the problems. Gritzeal was founded to give AMOs, MROs, and manufacturers a faster, more direct path through Transport Canada certification without the overhead of large firms.

Fast Turnaround
Certification delays cost you money. We move with urgency on every project.
🎯
Technical Depth
Founded by engineers — not project managers. We understand the work.
🔗
End-to-End
One partner for PDA, PMA and STC. Consistent expertise, no hand-offs.
💰
Cost-Effective
Startup agility means lower overhead and competitive pricing.
// Our Process
01
Project Scoping
We assess your certification pathway, identify requirements, and define a clear project scope and timeline.
02
Engineering Analysis
Our engineers perform the technical work — structural analysis, compliance assessments, and documentation preparation.
03
TC Submission
We manage the full Transport Canada submission process, handling all correspondence and revisions.
04
Approval & Delivery
Your approval, delivered. We provide complete documentation packages for your records.
Who We Work With

OUR
CLIENTS

🏭
AMOs
Approved Maintenance Organizations

We support AMOs requiring engineering disposition for corrosion findings, non-standard repairs, and modifications that need formal TC approval.

🔧
MROs
Maintenance, Repair & Overhaul

MRO facilities working on complex structural repairs and modifications benefit from Gritzeal's fast, cost-effective STC and PMA support.

✈️
OEMs
Aircraft Manufacturers & Designers

Manufacturers and design organizations seeking PDA and STC approvals for new or modified aeronautical products under Transport Canada.

Get In Touch

LET'S
TALK.

Have a certification project in mind? Dealing with corrosion findings that need engineering disposition? We'd love to hear from you. Reach out for a free consultation.

Email
gritzealengineering@gmail.com
🌐
Website
gritzeal.com
📍
Toronto
Canada
Send Us a Message