500 hour Inspections on Slick and Kelly Magnetos (4300/6300 series) turned around in 1-2 days for €500 per mag for standard 500hr Insp (incl replacement of brush, rotor gear and contacts). Repairs and overhauls. All released on EASA Form 1. Located in Dublin, Ireland.
Maintenance on non-commercial aircraft under 2,730kg MTOW under EASA Part ML
Combined Airworthiness Organisation - Approval IE.CAO.119 (Class :Components - Rating : components other than complete engines)
Contact - Telephone: John Dunphy 085-8167922 email: jd@generalaviationmaintenance.ie
Independent Certifying Staff
UK CAA B1 Licensed Engineer (Part ML.ICS.43)
EASA Part 66 B1.2 Licensed Engineer (Group 3 rating)
Authorised Independent Airworthiness Review Staff (AIARS) (IAA issued)
Services:
Repairs - Servicing - Inspection
Annual/100hr Inspections - a typical Annual on a Cessna 100 series aircraft takes a minimum of 40 hours to accomplish and that is assuming no defects are found requiring rectification.
Airworthiness Review Certificates - issuance of - strictly only in the context of a 100hr/Annual Inspection carried out by us on an aircraft within our licence coverage (B1.2 Group 3) - piston propeller aircraft with MTOW under 2730 kg under Part ML. Note we can only issue ARCs - we cannot do first or second extensions of them. With effect from 24/1/2025 we can now issue ARCs for G-Reg aircraft also (under similar conditions).
Borescope Inspections - usually engine borescope of cylinders, pistons, valves etc - we can supply a report and recommendations with photos of the cylinder interior.
Pitot-static system testing using a portable air data test kit/pitot static test kit (fully calibrated).
Spark plug cleaning and testing using the bomb tester (100 psi and 24kV).
Differential Compression tests - using ATS calibrated compression tester.
Nitrogen filling of tyres and nose oleo struts (N2 doesn't support combustion and maintains tyre pressure longer than air, for oleos it is dry - no corrosion)..
Magneto timing checks - i.e. external timing of the magneto to the engine.
Top Overhauls.
Valve lapping in situ. (E.g. a heat distressed exhaust valve is detected with the borescope. It may be a candidate for lapping without removing the cylinder. This can be done inexpensively and may prevent an in-flight engine failure (IFSD).
Engine removals and reinstallation. Crating for consignment to Engine Overhaul organisation (for repairs, overhaul etc).
Repairs to ignition harnesses (e.g. replacement of individual leads).
Jump starting flat batteries using portable Power Pack (only when we are at Kilrush Airfield)
Sample of Recent jobs carried out:
September 2024- Annual Inspection, Airworthiness Review & ARC Renewal. (Cessna 152).
May 2024 - 500 hr inspection on 2 no Slick 4230 magnetos (Piper Cub)
- 500 hr inspection on 2 No Slick 4381 magnetos (Cessna 152)
April 2024 - 500 hr inspection on 2 no Slick4333 magnetos (Piper Cub)
Feb 2024 - Slick Ignition harness repair. (Lycoming O235 - Cessna 152).
Dec 2023 - Ignitech ignition modules fitted on firewall (replacement and relocation) at request of owner. Engine oil & filter change. Seized cabin heat control cable freed and re-fitted. Rotax 912ULS - Roko Aero NG4.
Nov 2023 - Inspection & report on rigging of engine controls at request of aircraft owner and CAMO. (Cessna 150).
Aug/Sept 2023 - Annual Inspection , Airworthiness Review and ARC Renewal . Lycoming O-235 L2C engine borescoped and spectrographic oil analysis done. (Cessna 152).
Feb 2022 - Top Overhaul - replacement of cylinders under warranty - Lycoming O235
Latest Update : 16/9/2025
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