< Back Alert A-08-2025 - Gen 4 Jabiru 3300 Engine Crankshafts 25 Jul 2025 LAA Alert A-08-2025 - Gen 4 Jabiru 3300 Engine Crankshafts On 11.4.25, Jabiru Aircraft Pty Ltd issued a new Service Bulletin, JSB 046, which applies to specific Jabiru 3300 engines and requires the replacement of the crankshafts on engines within certain serial number ranges, which they state were supplied between April 2017 and June 2024. Jabiru regards the Bulletin as mandatory. The Bulletin advises that Jabiru has identified that, as a result of an issue with heat treatment, crankshafts supplied with the affected engines are in some cases susceptible to failure. Jabiru have specified that the crankshaft must be replaced by a crankshaft of the later, improved design. Affected crankshafts must be replaced prior to 15th December 2026, or 150 hours total time in service (TTIS), whichever occurs later. A-08-2024 can be found HERE and is also shown below. A-08-2025 - Gen 4 Jabiru 3300 Engine Crankshafts .pdf Download PDF • 202KB Next Previous

LAA are proud to announce our Rally 2025 sponsors Other Attractions The LAA Leicester Rally 2025 opens on Friday 29th August at 9.30 am and closes at 4pm on Sunday 31st August. Aircraft Park – Over 600 aircraft, dependent upon the weather are expected to fly-in over the 3 days of the Rally Airside access - a unique opportunity to inspect the aircraft and chat with the owners Large trade-exhibition: everything from a nut and bolt to an aircraft kit Aircraft Covering Display LAA Team present throughout the weekend Pilot Coaching Scheme coaches available to give advice Flea Market: Sell those unwanted parts or buy yourself a bargain! Speakers Corner: Seminars by keynote speakers throughout the weekend Strut Members' Area Outside catering including bar: Selection of fast-food and beverage outlets including bar and ice cream van; seating area Evening Bar, Food and Entertainment provided by Leicestershire Aero Club On-site campsite GASCo's Aircraft Competition LAA Education and Hands on Skills information and advice Full range of LAA clothing and merchandise

< Back Alert A-05-2025 - Alpi Pioneer 300 - Inspection of Undercarriage Components for Cracking and Corrosion 12 Jun 2025 LAA Alert A-05-2025 - Alpi Pioneer 300 - Inspection of Undercarriage Components for Cracking and Corrosion LAA Alert A-05-2025 has been published on the LAA website (and is also attached), highlighting Alpi Pioneer 300 and 300 Hawk aircraft that have suffered different malfunctions and failures of various components that make up the undercarriage. This Alert strongly recommends a close inspection of the undercarriage at 25-hour intervals for corrosion and cracking, as well as a retraction check, to verify that the retraction system components remained correctly adjusted, to avoid undercarriage collapse due to the mechanism not being adequately over-centre when extended. A-05-2025 - Alpi Pioneer 300 Landing Gear Corrosion .pdf Download PDF • 204KB Next Previous

Certification & Approval Having worked out a promising-looking layout, initial three-view and performance and weight specifications, now is the stage where the hard work begins of transforming concepts to working drawings. Essential decisions have to be made about types of material to be used, the structural arrangement, exact choice of powerplant and so on. You’ll probably need to make a cockpit mock-up to check the ergonomics and control system arrangements, and maybe build a flying radio controlled model of the design to give faith in the handling characteristics. With the basic geometry laid out, stress calculations and assembly drawings come next, then drawings of individual piece parts. Keep an up-to-date tally on weights. As the drawings get more detailed you must re-evaluate whether you are going to meet your original targets in terms of weight, strength and aerodynamic cleanliness, whether you need to re-visit your original assumptions or re-design from scratch. Is there a way that the part or assembly can be made more easily, more cheaply, lighter, stronger, more fatigue or corrosion resistant ? Fewer parts and fewer joints generally means fewer problems and less weight. Can you use off the shelf parts rather than having to make them specially ? Are there other aeroplanes around that have already solved a particular problem in a clever way ? Will the aircraft be easy to inspect in service, easy to repair if it gets damaged ? Can it be broken down for transportation ? If the handling isn’t quite right when the prototype is test flown, does the design make provision for ‘tweaks’ to put it right ? Does the design include reserves of strength to cope with weight growth in service and more powerful engines, or is everything pared down to the minimum ? Downloadable Spreadsheets Technical Leaflets Design Tutorials

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< Back New LAA Inspector - Gary Priestley 4 Dec 2025 We are pleased to welcome Gary Priestley as a new LAA Inspector, having attended an LAA Inspector Assessment Day at Turweston. Gary started at BAe Filton as an Aeronautical Engineering Apprentice in 1978. His first day out of the training bay was spent working on the test and development Concorde 002. During his apprenticeship he worked on the VC10's air-to-air refuelling conversion and on test and development for Airbus on the fly-by-wire BAC 1-11. After his apprenticeship he became an Inspector on the F1-11s, with his main role involving pre- and post-inspection of the Cold Soak, where the aircraft were frozen and bent to re-life them. He transferred to Warton for the Al-Yamama project, working on Tornado ADVs and IDS aircraft in Saudi Arabia. Gary returned in 1990 and was recruited as a technical instructor at British Aerospace Filton, teaching the following: Concorde pilots and flight engineers, utilising the simulator to help them pass their ground school type rating. Aircraft fitters working toward their B2 and B1 licences, as well as type courses on the A300 B4 and A300-600, where the aircraft were being converted to freighters. The BAC 1-11 refresher course for the Sultan of Oman Air Force pilots. Type rating for British Airways Concorde engineers at Heathrow. Apprentices studying for their City and Guilds. Night-school City and Guilds for non-skilled fitters. While carrying out this training, he repaired a Robin HR 200 with the help of the apprentices and studied for his Commercial and subsequently his Airline Transport Pilot’s Licence. Gary left BAe in 1999 to fly the BAe 146 for CityJet in Dublin, before being asked, through CityJet, if he would like to transfer to British Midland to fly the BAe 146 for Lufthansa. A few years later he was made redundant, gained his Helicopter Commercial Pilot’s Licence, but was then asked to join Flightline on the BAe 146, flying oil-rig workers from Aberdeen to Scatsta and later working out of Manchester for British Airways. An opportunity arose to fly with Titan Airways in Stansted, flying ad-hoc standby for British Airways, easyJet, and others. Several years later he completed a type-rating course on the Boeing 737 to fly from Exeter. He took voluntary redundancy in 2013. By chance, after buying a prestigious car from someone who owned an aircraft at Middlezoy, Gary made the connection that brought him into affiliation with Middlezoy Aerodrome, where he now has a share in Louis, the Taylorcraft type D, and is 50% owner of the Isaac Fury. Next Previous

Become an Inspector Are you interested in becoming an LAA Inspector? To understand the application process, read the 'LAA Inspector Application Notes' and 'Flow Chart' below. Please use the form below to apply and include as much detail as possible in your application. Complete applications can be emailed to the Head of Continuing Airworthiness & Inspection (Chief Inspector), Lucy Wootton at [email protected] . INSPECTOR APPLICATION NOTES INSPECTOR APPLICATION FLOW CHART INSPECTOR APPLICATION FORM INSPECTOR APPROVAL INFORMATION

< Back uAVionix AV30E approved as a back-up EFIS 8 Jun 2023 We've recently added the uAvionix AV30E to our list of approved backup EFIS units for use in Permit aircraft. The EFIS units listed in TL3.20 may be used without further reference to LAA Engineering, although your LAA inspector will need to make a Permit Maintenance Release (PMR) entry in the airframe logbook quoting this Technical Leaflet reference. Next Previous

< Back Rally Entrance Tickets, Airside Passes and Camping Permits on Sale!! 18 Jul 2025 Entry Tickets and Airside Passes now on sale via the LAA Shop . Landing slots will be available soon. We have a special offer for non members - £50 for all 3 days including Airside. Available for purchase until 31st July 2025 Next Previous

< Back New LAA Inspectors - Umberto Izzo & Simon Boynett 26 Jan 2024 It is time to introduce you to two more new LAA Inspectors - Umberto Izzo and Simon Boynett, who both attended an LAA Inspector Assessment Day in December, with our Chief Inspector, Lucy. Umberto's experience is mainly in general aviation and microlight aircraft (metal, fabric and composites), either Lycoming, Continental or Rotax-powered. He is also IRMT-approved. He owns a share in Jodel 1050. Simon is a retired Licensed Aircraft Engineer with 44 years of experience working on Commercial Passenger and Cargo aircraft. He has a B1 and B2 CAA licence (Airframes, Engines and Electrical generation systems) B2 (Avionics, Auto flight, Auto land systems, Radio and Radar). In addition to this, he has an FAA issued A & P licence. He put a lot of blood, sweat and tears into building his own Vans RV 7, that he still loves to fly today as often as he can. Although retired, he still has aeroplanes and safety in his blood and looks forward to helping others to keep the high standards the LAA require, and to advise and certify Maintenance and Permit to Fly revalidation inspections. Next Previous

< Back Mandatory Technical Directive issued for Sting S4 29 Sept 2023 LAA has been working with TL StingUK to correct an issue found during the flight testing of the factory-built version of the aircraft. It was found that the type would consistently drop the starboard wing more than the permitted maximum during a wings-level stall. LAA Mandatory Technical Directive MTD-01-2023 has been issued that requires the installation of a stall strip on the starboard wing and two stall strips on the port wing, along with restricting the elevator travel, in accodance with TL StingUK service bulletins 0002 and 0003, before further flight. Next Previous

< Back New LAA Inspector - Ben Davis 27 Nov 2025 We are pleased to welcome Ben Davis as a new LAA Inspector, having attended an LAA Inspector Assessment Day at Turweston recently. Ben has been an aircraft owner for about twenty years and has become something of a fan of the (mighty) Alpi Pioneer series. He’s owned several and flown several more. Ben has also refurbished and upgraded a number of Pioneers with new avionics, autopilots, and instruments. Along the way, he has owned and improved a Europa and a few other types, but he always seems to find his way back to a Pioneer! Ben also enjoys staring out of the front window of little biz jets. With a background in electronics, moving into avionics was a natural step for him. Ben is a Rotax iRMT (Line & Heavy), a BMAA Inspector, and now also an LAA Inspector, combining his technical background with years of hands-on experience. Ben is based at Finmere, just a short hop from LAA HQ, and is always happy to help other owners with maintenance, upgrades, or just a good aviation chat. You can find him sharing projects and flying adventures on social media as @benfly79. Next Previous