Transport Canada AMO · Rotary-Wing MRO · Dorval, QC
Specialized and non-specialized maintenance for helicopters — component overhaul, airframe and dynamic components, engine and avionics support, and AOG rapid response. Based at Montréal-Dorval since 2000.
24 / 7
AOG rapid response
25+
Years serving operators
CAR 573
Approved Maintenance Org.
8
Core capability areas
MCSA Helicopter Technical Services was incorporated in 2000 to give rotary-wing operators a single, accountable source for maintenance, repair and overhaul. We work on airframes, dynamic components, engines and avionics — and we keep aircraft flying with fast, disciplined AOG support.
As a Transport Canada Approved Maintenance Organization under Canadian Aviation Regulations Part 573, every task is planned, executed and signed off to standard, with full traceability. Owners, charter operators and utility fleets trust MCSA to protect their airworthiness and their schedule.
Specialized and non-specialized maintenance across the whole aircraft — under one roof, one accountable team.
Shop overhaul, repair and bench-testing of rotable components to OEM specification, with full teardown, inspection and release documentation.
Main and tail rotor systems, gearboxes, drive trains and flight controls — inspected, repaired and rigged to keep dynamic components within limits.
Turboshaft engine maintenance, borescope inspection, hot-section access, module changes and troubleshooting to keep powerplants reliable.
Installation, repair and upgrade of communication, navigation and glass-cockpit systems, wiring and instrument work to current airworthiness standards.
Sheet-metal, composite and structural repair — corrosion treatment, panel fabrication and damage assessment returning structures to serviceable condition.
Aircraft-on-ground support to diagnose, source and repair fast — on-call outside shop hours to get you safely and legally back in service.
Scheduled inspections, life-limited-part tracking, AD/SB compliance and return-to-service — keeping your maintenance program on standard and on time.
Parts sourcing, exchange and logistics — traceable material with the documentation your records and your regulator require.
01
A Transport Canada AMO under CAR Part 573. Every task planned, controlled and released with full documentation.
02
Airframe, dynamic components, engine, avionics and structures under one roof — no hand-offs, no finger-pointing.
03
Realistic turnaround, clear communication, and AOG response that treats your downtime as the number that matters.
04
Located at Montréal-Trudeau, easy to reach for operators across Québec, Ontario and beyond.
A clean, organized shop set up for rotary-wing work — from a full teardown to a fast AOG turnaround.
MCSA operates as a Transport Canada Approved Maintenance Organization under the Canadian Aviation Regulations. Our work is performed and released by certified personnel to the applicable airworthiness standards.
Transport Canada AMO
CAR Part 573
Rotary-Wing Focused
Specialized & non-specialized
Full Traceability
Documented release
"They diagnosed a dynamic-component squawk the same afternoon and had us serviceable inside two days. The documentation was flawless."
"AOG on a Saturday and MCSA answered. Clear scope, honest turnaround, aircraft back in the air Monday. That's the whole relationship."
"We moved our overhaul work to MCSA for the traceability alone. It's rare to find a shop this organized and this straight with you."
Tell us your aircraft type and the work required. We'll respond with scope, lead time and turnaround. For AOG, call — day or night.
685 Avenue Orly, Dorval, QC H9P 1G1
Airside at Montréal-Trudeau (YUL)
Mon–Fri 07:00–18:00 · AOG on call 24/7
