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< Back MTD-04-2025 upissued to Issue 2 - Rans Control Linkage Rod End Connector Safety Washers 18 Nov 2025 MTD-04-2025 Issue 2 - Rans Control Linkage Rod End Connector Safety Washers MTD-04-2025 Issue 1 was recently published to mandate the replacement of all plastic control linkage rod end connector washers with metal washers . It has become apparent that the washers specified in this MTD are not suitable to replace the plastic washers due to their dimensions. MTD-04-2025 Issue 2 has been raised in order to amend the specification of the metal washers that must used to replace plastic washers. Therefore, MTD-04-2025 Issue 2 supersedes Issue 1. Issue 1 of this MTD is now cancelled. Please refer to the attached MTD document for full details and compliance instructions, which can also be found on the LAA website HERE . MTD-04-2025 - Rans Rod End Washers - Issue 2 .pdf Download PDF • 293KB Next Previous

Continental Covering Letter to Owners AAN PFA 999-413 Sup 3 Approved Mogas Aircraft/Continental Engine combinations Inspection Checklist

< Back Engineering updates in July 7 Aug 2025 The following documents have been issued/updated in the Engineering 'Info Library' during July. Continuing airworthiness information : Mandatory Technical Directive MTD-05-2024 issue 2 - Jabiru distributor caps Mandatory Technical Directive MTD-03-2025 - Marquart Charger aileron slave strut Alert A-05-2024 issue 2 - Rotax engine oil spray nozzle Alert A-07-2025 - Glastar aileron servo-tab pushrod cracking Alert A-08-2025 - Gen 4 Jabiru engine crankshafts Technical leaflets : TL 2.00 - Revalidating your aircraft's Permit to Fly TL 2.19 - The LAA Generic Maintenance Schedule TL 2.33 - Insepctor categories for type TADS : 274 - Europa 315 - Eurostar 324 - Supermarine Spitfire mk26 Propeller type lists PTL/1 : Kitfox mk1/mk2/mk3 Forms : LAA/AR-REF (FB GYROPLANE) - Airworthiness review reference guide (crib sheet) LAA/AR-REF (HOMEBUILT GYROPLANE) - Airworthiness review reference guide (crib sheet) LAA/AR-REF (FIXED WING) - Airworthiness review reference guide (crib sheet) LAA/CFS-1 (GYRO) - Check flight schedule LAA/CFS-1 (FIXED WING) - Check flight schedule LAA/FBG-SUPP - Supplement to factory-built gyroplane revalidaton form LAA/PFRC-1 - Permit Flight Release Certificate LAA/FT-NEW - Flight test schedule, new builds, transfers, modifications and repairs LAA/FT-ENG - Flight test schedule, engine modifications Next Previous

< Back Aerobatics Course bursary for LAA Members!!! 6 Jun 2025 These bursaries are available thanks to the generosity of LAA member John Rowlinson and his company PTS. You must be an LAA member to apply. Please send an email with the subject line Aerobatics and we will get back to you. Next Previous

< Back New LAA Inspector - Phil Hebdon 27 Nov 2025 We are pleased to welcome Phil Hebdon as a new LAA Inspector, having attended an LAA Inspector Assessment Day at Turweston recently. Phil previously worked as a commercial pilot, before moving into aircraft maintenance. Phil has been an LAA aircraft owner for many years – including a Taylor Monoplane, Pitts Special and a Miles Gemini. Phil has been maintaining his own aircraft, as well as those of others, and has significant experience maintaining and rebuilding gliders, specialising in wood repairs and fabric work. Next Previous

< Back MTD-04-2025 published Rans Control Linkage Rod End Connector Washers 13 Nov 2025 MTD-04-2025 - Replacement of all plastic control linkage rod end connector washers with metal washers During an inspection of an early Rans S6, all plastic washers between the bolt and bearing of the flap and aileron control linkage rod end connectors were found to be split or missing. This issue is identified in Rans’ service bulletin 012390-03. As plastic washers are susceptible to failure due to wear and embrittlement, this MTD is raised to mandate the replacement of all plastic control linkage rod end connector washers with metal washers. These washers prevent the rod end from disconnecting in the event of bearing failure. The washers fitted must be larger than the diameter of the bearing. Refer to here for a diagram. MTD-04-2025 can be found here and is found below. Note: Do not re-use nyloc or other self-locking nuts if their locking ability has become compromised. MTD-04-2025 - Rans Rod End Washers .pdf Download PDF • 240KB Service Bulletin - Control Linkage Rod End Connectors .pdf Download PDF • 66KB Next Previous

< Back Alert 05-2024 - Rotax Oil Spray Nozzles - upissued to Issue 2 24 Jul 2025 LAA Alert 05-2024 - Inspection and/or Replacement of Oil Spray Nozzle in some Rotax 900 series engines - upissued to Issue 2 On 16.12.24, Rotax issued a MANDATORY Service Bulletins SB 912 i-016/SB 915 i-016 / SB 916 i-006 and SB-912 i-016iS / SB-915 i-016iS / SB-916 i-006iS which call 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. Therefore, LAA Alert A-05-2024 was issued on 17th December 2024 regarding this. Subsequently, a revision to the Rotax Service Bulletins was issued on 20.12.24, entitled MANDATORY Alert Service Bulletins ASB 912 i-016 R1/ASB 915 i-016 R1 / ASB 916 i-006 R1 and ASB-912 i-016iS R1 / ASB-915 i-016iS R1 and ASB-916 i 006iS R1. Therefore, on 23rd July 2025, LAA Alert A-05-2024 was upissued to Issue 2, which now supersedes Issue 1. A-05-2024 Issue 2 can be found HERE and is also found below. 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 Issue 2 .pdf Download PDF • 232KB Next Previous

< Back Nick Stone appointed as the LAA's Head of Airworthiness 24 Oct 2023 The LAA is pleased to announce the appointment of Nick Stone as the LAA’s Head of Airworthiness. Nick brings a vast wealth of aircraft knowledge as well as a real world understanding of the need for good process and procedure. Having started his career in the Royal Air Force, Nick went on to work in the aerospace industry working in the UK with British Aerospace and Slingsby Aviation at various sites and projects, as an inspector, methods engineer and quality engineer. Nick then moved to the United States at Eastern Airlines in Miami Florida, Learjet in Wichita Kansas and Chihuahua Mexico as inspection/Quality representative of Shorts Aerospace (Bombardier Aerospace). Following a downturn in the British Aerospace industry he then took an opportunity to move into the nuclear industry working in both reprocessing and power generation. Throughout Nick's working life the one constant has been a passion for aviation. Having started as a volunteer at a local aircraft museum at 14, Nick started flying at the age of 16 in gliders and has a private pilot’s licence PPL(A). Prior to becoming an LAA inspector Nick spent many years building, rebuilding, and restoring vintage aircraft, the more unusual the better. “As an LAA inspector I understand the need to move forward and change and adapt to an ever changing but exciting world. Having run my own aircraft restoration company for the last seven years I always felt it is important to understand your customers”. LAA CEO Simon Tilling said, “Nick is a great addition to the LAA staff. I and the rest of the team are looking forward to working with him in the near future” Next Previous

< Back Mandatory Technical Directive issued for many Zenair types 14 Jan 2025 MTD-01-2025 - 'Inspection of horizontal stabiliser (tailplane) attachment brackets and associated hardware for cracks, looseness and other forms of distress' is issued for Zenair CH601, CH650, CH701, CH750 and variants of these four models. 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. MTD-01-2025 - Zenair Tailplane Brackets .pdf Download PDF • 162KB Next Previous

< Back LAA Alert A-15-2025 Glasair Rudder Pedal Bearing Failures 23 Dec 2025 LAA Alert A-15-2025 Glasair Rudder Pedal Bearing Failures A recent social media report has brought attention to two rudder pedal bearing failure events on a non-LAA Glasair. These bearings attach each rudder pedal assembly to the bearing support ribs. Owners and Inspectors should carry out frequent inspections of these bearings for signs of cracking, breaking, excessive play or any other abnormalities. Pilots should also conduct effective full-and-free movement checks during taxiing to ensure correct rudder pedal operation prior to take-off. If there are any doubts on the bearings’ condition, age, or origin, they should be replaced with newly made ones. Instructions on how to make new bearings from a 3/4" UHMWPE sheet can be found in the Stoddard-Hamilton Instruction Manual. Please refer to the LAA Alert A-15-2025 HERE or below for full details and recommended checks. A-15-2025 Glasair Rudder Pedal Bearing Failures .pdf Download PDF • 309KB Next Previous

Avgas UL91 & UL94 UL91 has been supplied at many airfields for a number of years. UL94 (similar to UL91 but with a slightly higher octane rating) is now becoming available. These fuels are suitable, and approved, for a wide range of engines types used in LAA aircraft. With 100LL being phased out over the coming years, now is an ideal time to see if your engine is compatible and help do your bit for the environment. The LAA Airworthiness Approval Note (AAN) for use of UL91 & UL94 in appropriate LAA aircraft can be found here . It contains a list of the most popular types of engines for which the fuel is suitable. The EASA document pertaining to use of UL91 in non LAA types is available here.