< Back Engineering updates in December 2 Jan 2025 The following documents have been issued/updated in the Engineering 'Info Library' during December. Continuing airworthiness information: Mandatory Technical Directive 07-2024 - Eurofox trim cables Alert 03-2024 - Eurostar trim cables Alert 04-2024 - Loose Rotax engines Alert 05-2024 - Rotax 900 series engines - blocked oil spray nozzle Technical Leaflets: TL 2.22 'non-type specific MPDs' TADS : Sling 4 TSi Wishing all our members a very Happy New Year. Next Previous

Light Aviation Magazine 2022 Click on the links below to open each issue of Light Aviation Magazine from 2022 January 2022 April 2022 July 2022 October 2022 February 2022 May 2022 August 2022 November 2022 March 2022 June 2022 September 2022 December 2022

Lycoming Lycoming engines in certain specific airframe types have been approved by the CAA for the use of unleaded Mogas, using the process described in CAP747 , See Section 2, Part 4, General Concession 5. This involves purchasing an STC (Supplemental Type Certificate) from either the EAA or Petersen Aviation in the USA and carrying out the actions called for by the STC. The procedures stated in CAP747 may be followed for LAA aircraft but only for aircraft with the exact same engine/airframe combinations quoted on in CAP747.. An LAA inspector must check that the aircraft operator has obtained a copy of CAP747, Section 2, Part 4, GC5 and of the appropriate STC and complied with the actions called for therein, and signed off a suitable logbook entry accordingly before the aircraft may be flown with unleaded Mogas.

We provide a system whereby members can build an aircraft in the comfort of their own home (or wherever they choose) from either a set of plans or from a kit of parts. Every year around 100 newly-constructed aircraft are added to the LAA fleet, with members generally taking around 1 to 4 years to complete their kit projects. A whole range of aircraft is available to build, from single-seaters to four-seaters, aerobatic to amphibian, and WWI replica triplanes to gyroplanes. The LAA is tasked with ensuring that the designs members build meet minimum airworthiness requirements, appropriate to the type. Proposals for accepting other designs of aircraft can be put to the LAA, and a number of such types are accepted each year following a review of their airworthiness, amongst other things. This requires a member to champion the type through the process, arranging for the necessary technical information to be passed to the Engineering department and to build and test the first example. Similarly, it is possible for a member to build an aircraft of their own design. LAA provides support for this (see the Designing aircraft section), but due to limited resources only the most promising/developed designs can be advanced through the system. Building Aircraft One of the founding principles of the LAA is to provide for members wishing to build their own aircraft, either for their own education or to enable them to own an affordable aircraft. Of course, whichever type you choose it is usually possible to customise it to your liking using the LAA’s modification system. So if it’s an elaborate avionics suite that takes your fancy or an automotive engine conversion, there’s a route to investigating whether it’s possible. If you like the idea of building, but feel you lack the skills, then there are courses on various aspects of aircraft building to help bring you up to speed. Your Inspector is also a fantastic mine of information and generally will be your first port of call for technical information. Of course, the LAA also has a pool of full-time engineers who can be contacted for advice. For further information, click the button below for Technical Leaflets covering the Build Process Click here for more information

< Back New LAA Inspector - Mark Bodger 23 Oct 2024 The LAA is pleased to welcome Mark Bodger as a new LAA Inspector. Mark has considerable experience on metal and wooden aircraft. He has rebuilt a Turbulent, Nipper, Colibri, Pitts, Vans RV-4 and completed new build projects including an Isaacs Fury and plans Replica SE5a. He has experience in VW engines, having rebuilt several. In his 30 years of LAA membership, he has owned over 20 LAA types, giving him a broad exposure to the maintenance of different aircraft. He also has the facilities to weigh aircraft. Congratulations Mark! 🎉 Next Previous

< Back LAA Alert - FAA issues AD for Piper rudder posts 14 Feb 2025 Replacement of rudder posts not made from 4130N On 13.02.25, FAA issued Airworthiness Directive 2025-02-11 which requires the replacement of the rudder post on a large number of Piper types, where the part is not made from 4130N steel. Compliance time varies between 2 years and 10 years depending on whether a beacon light is fitted to the top of the fin post and depending on the power of the engine installed. LAA Alert A-01-2025 has been created to communicate this to potentially affected owners. A-01-2025 Piper rudder post AD .pdf Download PDF • 196KB Next Previous

< Back Inspector Renewal 19 Mar 2024 It's that time of year again! LAA Inspector Authorisations lapse at the end of this month. Renewing is simple, available both on and offline. In order to renew this year, Inspectors need to carry out two simple steps, which are as follows: Complete and sign the ' Inspector Declaration, ' which was emailed to all Inspectors on 4th March, and return to LAA Engineering, either as a scanned document or in the post. Pay the Inspector Renewal Fee , which is £40 and covers administration of an Inspector Authorisation throughout the year. (For Inspectors of Factory Built Gyroplanes, there is no longer an additional fee. All Inspectors pay £40). Inspectors can pay via the LAA shop, found here , or by giving us a call with their payment card details. Alternatively, Inspectors can pay by Bank Transfer. Inspectors' continuing support is crucial and we sincerely hope that all Inspectors will renew. Next Previous

< Back MTD-01-2025 ISSUE 2 published - Zenair Tailplane Brackets 28 Aug 2025 MTD-01-2025 - 'Inspection of horizontal stabiliser (tailplane) attachment brackets and associated hardware for cracks, looseness and other forms of distress' for Zenair CH601, CH650, CH701, CH750 and variants of these four models has been upissued to Issue 2. This is in order to correct an error in the 'Effective Date' of this MTD. This MTD can be found HERE and is also available below. A number of cases have been found whereby the structural integrity of the horizontal stabiliser mountings on the Zenair types identified above have been compromised by one or more of the following: cracking of the attachment brackets oversize holes loose rivets distorted and chafed brackets. These problems could occur due to a number of factors including poor build quality, a build-up of tolerances in the positioning or dimensions of the brackets, improper assembly, rough treatment or in-flight vibration. Failure of a tailplane attachment could result in degraded controllability in flight or loss of control. Special inspections of this area have been recommended by Zenair since January 2017, in their document ‘Mandatory Action. Jan. 2017 – Inspection of Horizontal Stabilizer tail attachment brackets’. This Mandatory Technical Directive mandates this safety action for aircraft operating on LAA Permits to Fly. 20250828 - MTD-01-2025 - Zenair Tailplane Brackets - Issue 2 .pdf Download PDF • 183KB Next Previous

< Back Mandatory Technical Directive issued for Jabiru 2200 engines 10 Jul 2024 Mandatory Technical Directive, MTD-05-2024 has been issued today to introduce mandatory checks on the clearance between the distributor cap and rotor arm in Jabiru 2200 engines where the cap or rotor have recently been changed (or following subsequent changes). This follows an in-service finding where differences in distributor cap design were found which lead to extreme wear in the components causing the engine to stop. The MTD must be carried out before further running of the engine on or after 10th July 2024 on Jabiru 2200 engines where the distributor cap and/or rotor arm has been changed in the last 20 engine hours, or are subsequently changed. The checks are also recommended on all other Jabiru 2200 engines. Next Previous

< Back The importance of airfield location 12 Feb 2024 The first results of a survey conducted by the new Strategic Airfield Network (SAN) indicate that location is the number one reason airfields consider themselves important. For more information, head to the Flyer article below: https://flyer.co.uk/location-location-location-airfields-are-important/ Next Previous

< Back New LAA Inspector - Malcolm Talbot 14 Jul 2025 We are pleased to welcome Malcolm Talbot as a new LAA Inspector, having attended an LAA Inspector Assessment Day at Turweston recently. Malcolm holds a BSc(Hons) with the Open University in Maths, Technology and Engineering. He has held a PPL since 2010 and been a Flight Instructor FI since 2019, (having passed the CPL theory exams),. He is currently instructing for Moray Flying Club and Highland Aviation, and recently become a ground examiner. Malcolm built and flies a Eurofox, which first flew in 2013. He thoroughly enjoyed the build process. Next Previous

< Back LAA Alert A-13-2025 - CZAW SportCruiser Nose-Leg Failures 10 Dec 2025 LAA Alert A-13-2025 - CZAW SportCruiser Nose-Leg Failures LAA Engineering has issued Alert A-13-2025 to highlight the recent issues of SportCruiser Nose-Leg Failures. Two SportCruisers have recently suffered nose landing gear collapses, resulting in propeller strikes and airframe damage. Inspections have revealed evidence of cracking and possible weld-related weakness. Owners and Inspectors should carry out frequent checks for cracks, corrosion, and deformation on the nose-leg, paying particular attention to weld points. If any abnormalities are detected, the aircraft must not be flown and LAA Engineering contacted. Please refer to the Alert here for full details and recommended checks. A-13-2025 - CZAW SportCruiser Nose-Leg Failures .pdf Download PDF • 515KB Next Previous