Yes. We provide both full overhaul + test and test-only services.
Accessories Maintenance & Testing
Dedicated Accessory Expertise for M250 and RR300 Performance.
Technical Expertise. Industry Updates. Essential Turbines Perspectives.
Essential Turbines provides full accessory maintenance and testing for Rolls-Royce M250 and RR300 engines through our specialized facility in Malta.
As a longstanding Honeywell/VSE-authorized warranty and repair station, the Malta team has supported the 250 and RR300 family since the mid-1990s, giving operators a uniquely experienced, focused, and reliable accessory shop.
Why Accessory Maintenance Matters
Reliable accessories make reliable engines and Essential Turbines ensures both.
Operators rarely call us with “an accessory problem.” They call because the engine is surging, the power is inconsistent, or N1/N2 readings don’t look right. Most of the time, those symptoms trace back to the fuel control, governor, or another accessory.
Proper accessory maintenance helps operators:
Pinpoint the true root cause behind engine symptoms
Verify serviceability before installation or sale
Avoid repeated removals and troubleshooting cycles
Reduce in-service issues and unplanned downtime
Make informed choices when parts are scarce or expensive
What We Service
All accessories are tested on a dedicated accessory test stand, ensuring precise, repeatable results independent of an engine.
Full overhaul and testing for M250 and RR300 accessories, including:
- Fuel control units (excluding HMUs)
- Power turbine governors
- Selected fuel pumps
- All fuel nozzles
- Other fuel and control accessories within OEM-authorized scope

Accessory Overhaul & Testing Workflow
Every accessory that arrives in Malta follows a structured, OEM-aligned workflow:
01
Receiving & External Inspection
Visual inspection and documentation of the unit’s condition.
02
Technical Package Creation
Visual inspection and documentation of the unit’s condition.
03
Strip, Clean & Inspect
Visual inspection and documentation of the unit’s condition.
04
Material Review & Estimate
Visual inspection and documentation of the unit’s condition.
05
Parts Sourcing & Communication
Visual inspection and documentation of the unit’s condition.
06
Assembly & Test
Visual inspection and documentation of the unit’s condition.
07
Final Build & Shipment
Visual inspection and documentation of the unit’s condition.

We also support test-only services for pre-purchase evaluations, as-received verification, or troubleshooting support.
Navigating a Challenging Market
Today’s accessory market is shaped by:
Significant OEM parts price increases
Extended lead times for certain components
Global supply chain and raw material constraints
Essential Turbines can’t change market conditions but we communicate early, clearly, and honestly.
We offer realistic timelines, flexible options, and transparent guidance so operators can plan effectively and avoid surprises.
Our goal is always consistent: keep aircraft flying safely and predictably.

Why Operators Trust Essential Turbines Malta
We don’t just restore accessories. We help prevent recurring issues across the engine and aircraft system.
Essential Turbines Malta is known for deep system understanding and disciplined execution:
Honeywell/VSE-authorized warranty and repair station
Near-zero test rejections after build
Extremely low warranty returns
All OEM-allowed repairs performed in-house
Long-tenured technicians with decades on the M250 and RR300
Dedicated accessory test stand for precise, repeatable results
Ability to identify contamination trends and advise operators proactively

FREQUENCY ASKED QUESTIONS
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Do you offer standalone accessory testing?
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Which accessories can ETI service?
Fuel controls (excluding HMUs), governors, selected fuel pumps, and all fuel nozzles for M250 and RR300.
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How long does accessory maintenance take?
Turnaround depends on parts availability. When parts are on hand, we move quickly; when supply is tight, we provide clear timelines and options.
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Do I need to be an ETI engine customer to use Malta?
No. ETI Malta supports both full engine programs and standalone accessory customers.
Need Accessory Maintenance or Testing You Can Trust?
Whether diagnosing a persistent engine symptom or planning scheduled maintenance, Essential Turbines Malta delivers the expertise, accuracy, and transparency operators rely on.