< Back Mandatory Technical Directive issued for Chipmunk aircraft 24 May 2024 Mandatory Technical Directive, MTD-04-2024 has been issued by our Head of Airworthiness, Nick Stone, today to introduce mandatory recurring inspections of the flap operating cables following a recent potentially serious incident where one of the flap cables on a Chipmunk failed in flight, leading to an asymmetric flap configuration. The MTD allows a 5 flying hour period of grace before the inspection must be carried out and is being emailed today to all owners of LAA Chipmunks and all LAA Inspectors approved to inspect Chipmunks. 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 LAA Alert for Rotax 900 series engines regarding the oil spray nozzle 18 Dec 2024 Inspection and/or Replacement of Oil Spray Nozzle On 16.12.24, Rotax issued a new MANDATORY Service Bulletin SB 912 i-016/SB 915 i-016 / SB 916 i-006 which calls for urgent action for engines of specified models within certain serial number ranges, if the engine has run for less than 200 hours from new, or engines which have been fitted with specific overhaul kits supplied between 01.01.22 and 31.10.24 inclusive. The bulletin concerns problems with a possible full or partial blockage of the oil spray nozzle due to an excessive application of Loctite at the manufacturing stage, when assembling the sprag clutch housing. This can lead to inadequate cooling of the stator assembly, potentially causing loss of electrical power to the engine’s ECU. A-05-2024 Rotax Engine Oil Spray Nozzle .pdf Download PDF • 205KB Next Previous

< 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

< Back Alert A-10-2025 - Cracking in E-Props Carbon Propeller Hubs 28 Aug 2025 LAA Alert A-10-2025 - Cracking in E-Props Carbon Propeller Hubs A recent report of a crack appearing on an E-Props carbon composite propeller hub was received by the British Microlight Aircraft Association (BMAA). The crack was in the flange forming the periphery of the circular hub, in the close vicinity of one of the bolts in the outer ring of blade clamping bolts. Alert A-10-2025 shows photographs of the crack discovered and details required actions if cracks are found on LAA aircraft. A-10-2025 is available HERE and shown below. A_10_2025_E_Props_Propeller_Hub_Cracking_Issue_1 .pdf Download PDF • 382KB Next Previous

< Back Replica De Havilland DH71 Tiger Moth Racer takes to the air 23 Dec 2024 Steve Jones’ replica DH71 Tiger Moth Racer made a highly successful maiden flight on 26th November, piloted by Steve himself. The immaculate monoplane, appropriately registered G-ECDX, is a full-size recreation of one of only two examples built by de Havilland in 1927. Of all wood construction, and fitted with a modified DH Gipsy 1 engine, the original DH71s were created to publicise their new Gipsy engine before releasing it onto the market to power their already successful DH60 Moth biplane. An exercise in light weight and streamlining to maximise speed, the DH71 was also significant in developing construction techniques that de Havilland used to good effect in later designs. The original DH71 achieved 186mph around a 65 mile closed circuit course, its Gipsy 1 engine souped-up from 85 to 130 horsepower for racing. The replica project was largely built by Ron Souch in the 1990s, under PFA supervision, using drawings produced by Ron’s friend Ben Price, a former aircraft draughtsman who put forward the idea as his retirement project. None of the original construction drawings had survived, so the design had to be recreated based on a three-view, photographs, press articles and intimate knowledge of de Havilland’s standard design techniques – and then checked against modern design code requirements. Most challenging part of the design were the details of the internally bungee-sprung wheels, as on the original. The project was paused for several years after issues came to light with the stressing of the wing spars and undercarriage. Steve Jones, looking for a hangar-mate for his scratch-built Comper Swift project, purchased the DH71 in 2016. Steve quickly got things moving again by commissioning re-designs of some of the original components, stripping off the fabric covering, re-sparring the wings and finishing the aircraft off to the same high standard as its original construction. The final examination of the assembled aircraft by LAA HQ’s design staff in November, when ground runs of the modified engine and its very coarse pitch Hercules propeller were demonstrated, took place over three decades after the project’s inception. When Steve’s replica DH71 first lifted off from Sywell’s grass runway, it was a sight not seen in Britain for 95 years. Big congratulations to all involved, especially to Ron and Ben for initiating it, and Steve’s perseverance and skill in finishing all the last details to such a high standard. Honourable mentions also to John Tempest for the re-design work and Ben Cox for inspecting it, this was truly a team effort. Sadly, Ron Souch is no longer with us to see the Racer fly. Steve describes his aircraft experience as starting as an aircraft engineering apprentice at CSE Kidlington, in the late 1970s. He towed gliders at Husbands Bosworth, in Chipmunks, at age 19, and joined the Tiger Club in the late 1970s, becoming a flying instructor at Staverton 1981. As he describes it, he somehow (?) ended up flying BA 747s for 20 plus years. His remarkable flying career has involved air racing, aerobatic competition and display flying, Redbull competitions and record setting in the Rolls Royce electric powered ‘Spirit of Innovation’ aircraft. Next Previous

< Back Engineering updates in October 11 Nov 2025 The following documents have been issued/updated in the Engineering 'Info Library' during October. Continuing airworthiness information : Alert A-11-2025 - Eurostar control system rose joints Alert A-12-2025 - Aeroprakt windscreens TADS: Evektor Eurostar Vans RV-9/-9A Propeller type lists PTL/1 : Murphy Renegade 912 (new) Murphy Renegade Spirit (new) Vans RV-6 (up-issued) Next Previous

< Back LAA Head Office closed on Friday 4th July 3 Jul 2025 LAA HQ will be closed on Friday 4th July 2025 due to the Silverstone Grand Prix. All staff will be working from home, so can continue to deal with your calls and emails, but will not be on site at Turweston to answer any questions directly or receive any hand-delivered documents. Next Previous

Permit Aircraft Electrics - Advanced Course Price Member - £224, Non-Member - £244 (includes printed course material) Duration Arrival 09:00. Finish 17:00. < Back About the Course The Basics course covers simple DC theory and concentrates on the practical aspects of installing a basic permit aircraft electrical system. The course explains how to interpret a ‘typical’ permit aircraft electrical systems diagram and for every element, explains how to size, select and source components and then how to practically install them. This Advanced course builds on the Basics course by providing more detail about component selection and options and the use of integrated power management systems within permit aircraft. The course takes the simple systems design introduced in the Basics course and explores options for creating more complex electrical systems including the use of dual and essential system bus bars. The course introduces fault tolerant design considerations, thus allowing attendees to consider safety and fault analysis in their own designs. As a tool for understanding this aspect of the course, it will take an introductory look into the requirements of electrical systems for those wishing to fly their aircraft under IFR. What this course will try to do is: Explain power generation and distribution options in a light aircraft More advanced consisderations into component selection Discuss circuit protection devices and systems Explain failure modes and reliability issues Introduce interference and EMC issues Show correct grounding and screening techniques Provide you with the knowledge to plan an installation and create the necessary documentation Warn about the ‘gotcha’ areas and the things to look out for What the course will not do is: Turn you overnight into an expert Enable you to fault find on an undocumented aircraft installation Delve inside avionics boxes It will be useful, but not essential, for people to have previously attended the Basic course. In order to make the best of this course, if you have not attended the basics course, you will need to understand basic DC theory; Ohms Law and the Power Law. Please note that this course is primarily a classroom based course, as you will already have the practical skills you need, which are covered in the basics course. Your Instructor Mark Castle-Smith Dates Saturday 18 April 2026 Times Arrival 09:00. Finish 17:00. Duration One day course Venue LAA HQ, Turweston Aerodrome, NN13 5YD Price Member - £224, Non-Member - £244 (includes printed course material) Booking Pls call the LAA on 01280 846 786 to enquire/book or email [email protected] . *Please note that payment is required when booking, to confirm your place. NO place will be held without confirmed payment* **Please note that your booking payment is non-refundable unless we can fill your place timeously or there are exceptional circumstances**

< Back Winner Announced: LAA 80th Anniversary Rally Poster 6 Mar 2026 The winner of the 80th Anniversary Rally Poster Competition has been selected, and we’re delighted to reveal the official design that will represent this milestone year for the Light Aircraft Association. Congratulations to Amy Whitewick, whose striking design was chosen to mark 80 years of grassroots aviation, engineering excellence and community spirit! A Design That Captures 80 Years... The judging panel selected the artwork for its strong visual impact, clear celebration of the LAA, and its versatility across print and digital formats. The design reflects both the history of the Association and the forward-looking spirit that continues to define it today. Speaking about the win, Amy Whitewick said: "I'm so excited to win the LAA Rally Poster Competition for the 80th Anniversary, 2026 - my vision for the design was to create something that reflected the colours and styles that I love from posters of the 1930s, the Golden Age of aviation. I also wanted the poster to reflect the excitement and joy of current light aviation, including the portrayal of various aircraft types throughout the 80 years and embody the party-like spirit of this year's special rally. I felt this poster gives back all the joy and kindness that fellow LAA Members, Inspectors and Engineers have given me over the years. It's really a big thank you to them, my airfield 'family', who helped me achieve my wings and continue to encourage me to grow my skills."- Amy Whitewick, G-DHYS From Poster to Rally Branding The winning artwork will now be rolled out to support the promotion of the 2026 Rally! You’ll start seeing the design appear across LAA channels in the coming weeks as we build momentum towards the Rally. Thank You to All Entrants We’d like to thank everyone who submitted entries. The quality and creativity on display made judging a difficult task and demonstrated the depth of talent within the LAA community. We look forward to seeing the winning poster proudly displayed at the 80th Anniversary Rally.Rally details and ticket information will be shared with you in the coming months. LAA 80 Poster 2026 A4 .jpg Download JPG • 1.83MB Amy Whitewick - Photo .jpg Download JPG • 350KB Next Previous

< Back Eurofox Rudder Pedal Failures - LAA Standard Modification Approved & MTD-05-2025 Issue 4 19 Jan 2026 LAA Standard Modification SM16826 provides a terminating action to the 10-hour inspections required in LAA MTD-05-2025, which has now been up-issued to ISSUE 4 The LAA Standard Modification – SM16826 ‘ Reinforcement of Rudder Pedal to Torque Tube Joints ’ has been through our internal review process and is now formally approved. SM16826 strengthens all 4 pedal joints by the addition of welded steel, wrap-around finger plates. Incorporating this standard modification provides a terminating action to the 10-hour inspections required in LAA MTD-05-2025, which has now been up-issued to Issue 4. The CAA have also confirmed that incorporating this modification will be a terminating action for CAA MPD-2026-002-E and we expect the MPD to be upissued this week to reflect this. Once Standard Modification SM16826 is completed, owners will need to submit an LAA/MOD 1 Form ( Standard Mod Incorporation ) to let us know that the modification has been embodied, so that we can update our records at LAA HQ. A copy of Form LAA/MOD 1 is here . As a CAA-approved welder is required for this modification, owners have been provided with a list of CAA welders known to the LAA. MTD-05-2025 - Eurofox Rudder Pedal Cracking Issue 4 .pdf Download PDF • 913KB SM16826 Reinforcement of Rudder Pedals Issue 1 .pdf Download PDF • 743KB Next Previous

Jabiru Engine Course Price Member - £213, Non-Member - £233 Duration Arrival 09:00. Finish 17:00. < Back About the Course It is widely accepted that a good working knowledge of an engine will help a pilot to service and maintain it to a satisfactory standard. This course is designed to give pilots sufficient knowledge to be confident that their engines are both serviceable and airworthy and; if an issue is detected, to know whether they have the ability to resolve the issue or need to seek assistance. The course will also cover the common engine weaknesses and the important Jabiru modifications. The course primarily focuses on the 4 and 6 cylinder generation 1-3 engines. The course will also benefit owners of the latest generation 4 engine, but information will be limited due to the overall hours flown to date for this type of engine. The Aim of the Course The aim of the course is to give Jabiru engine operators sufficient knowledge to maintain and operate their engines. Method A classroom slide presentation will be given , supported by a demonstration engine and parts, detailing the build of a Jabiru engine from the crankshaft up. The slide presentation will also use the knowledge gained from the virtual build and cover how to check for engine serviceability prior to flight. Course Instructor: Clive James. Clive has owned and operated a Jabiru for over 20 years and in that time has worked on many engines, including 4 and 6 cylinder engines. Clive also provides technical assistance to many Jabiru engine owners, helping them maintain their engines to an airworthy standard. Your Instructor Clive James Dates Date to be confirmed Times Arrival 09:00. Finish 17:00. Duration One day course Venue LAA HQ, Turweston Aerodrome, NN13 5YD Price Member - £213, Non-Member - £233 Booking Pls call the LAA on 01280 846 786 to enquire/book or email [email protected] . *Please note that payment is required when booking, to confirm your place. NO place will be held without confirmed payment* **Please note that your booking payment is non-refundable unless we can fill your place timeously or there are exceptional circumstances**