Pneumatic & Air Management

Air Turbine Starter Repair & Overhaul

FAA & EASA certified air turbine starter repair and overhaul.

About the Air Turbine Starter

The air turbine starter uses high-pressure bleed air, supplied from the APU, a ground cart, or a running engine, to drive a turbine that spins the engine accessory gearbox up to light-off speed during start. Mounted on the gearbox, it converts pneumatic energy through a turbine wheel and reduction gearing to a clutch and output shaft, then disengages automatically once the engine accelerates past starter speed. Subject to high rotational speed and thermal and torque loads, it commonly experiences turbine blade erosion and foreign-object damage, bearing wear, clutch slipping or failure to disengage, gear and spline wear, oil seal leakage, and containment-related distress. Performance, leakage, and clutch function checks, with disassembly inspection, guide bearing, clutch, and turbine overhaul.

Our Air Turbine Starter Repair Capability

QTC repairs and overhauls air turbine starter components to the original manufacturer's specifications under our FAA and EASA Part 145 approvals. Our engineers — including former OEM pneumatic & air management specialists — perform teardown, inspection, cleaning, component replacement, functional and leak testing, and certification, and develop repairs for rejected and beyond-economic-repair (BER) hardware.

View Pneumatic Valves capability →

All Air Turbine Starter Parts We Service

Click a part number for repair details and to request a quote.

Part numberMakeModel
36E83-6QA McDonnel Douglas A-4 Skyhawk

Frequently Asked Questions

Does QTC repair air turbine starter components?

Yes. QTC repairs and overhauls air turbine starter components under our FAA & EASA Part 145 approvals. Our catalog lists 1 air turbine starter part number. Request a quote to confirm capability and turnaround.

What aircraft use the air turbine starter?

In our catalog, air turbine starter part numbers appear on McDonnel Douglas. See the full parts list below.

What is involved in air turbine starter repair and overhaul?

Our process typically includes incoming inspection, disassembly, cleaning, non-destructive evaluation, repair or replacement of worn elements, functional/leak testing, and certification with the appropriate airworthiness release.

Request a Quote for Air Turbine Starter Repair

Send us your part numbers and condition. Our engineers respond with repair scope, turnaround, and pricing.