Safety critical information | Civil Aviation Authority

Accident to Aerospatiale/Westland SA 341G Gazelle, YU-HEW, at Harrogate, North Yorkshire on 26 January 2008

Adjustable Seats in General Aviation Aircraft

Aerotechnik EV-97 Eurostar: Fuselage – Rear Fuselage Bulkhead – Inspection for Cracking

Aerotechnik EV-97, 97A Eurostar, EV-97 Eurostar SL, EV-97 teamEurostar UK and EV-97 Eurostar SL Microlight: Wing Flaps –Correct Engagement of the Actuator Pins - Inspection

Aerotechnik EV-97, EV-97A, EV-97 Eurostar SL and EV-97 teamEurostar UK: Wing / Fuselage Fairings – Inspection for Rivet Damage

Ageing Aircraft Component Reliability and Associated Acceptance of Replacement Parts

AIRBUS HELICOPTERS DEUTSCHLAND GmbH EC135 and EC635 Helicopters:Tail Rotor – Tail Rotor Blades – Inspection

Airworthiness of Aging Ex-Military Aircraft

All aircraft operating on a UK Permit to Fly fitted with a Ballistic Parachute Recovery System (BPRS) : Placarding Requirements for Aircraft fitted with a Ballistic Parachute Recovery System (BPRS)

All Microlights where P&M Aviation Ltd are the Type Approval Holder: Hang Bolt plus Lanyard - Inspection / Replacement

All Microlights where P&M Aviation Ltd are the Type Approval Holder: Rigging Cables with Roll Swaged End Terminals – Inspection / Replacement

All Microlights where P&M Aviation Ltd is the Type Approval Holder: Clevis Pin / Split Ring Installations – Inspection / Replacement

ATR-GIE Avions De Transport Regional ATR 42 and ATR 72 aeroplanes: Fire Protection – Engine Fire Extinguishing System – Inspection

Austro Engine GmbH E4 and E4P engines: Engine – Main Bearing / Studs – Replacement

Avoidance of Loss of Control In-flight Pilot Awareness of Aircraft State, During Periods of Multiple System Malfunctions and Flight Control Issues

AVRO 146-RJ: Navigation – Inertial Reference Units Magnetic Variation - Inspection

BAe 146 and AVRO 146-RJ: Time Limits / Maintenance Checks – Airworthiness Limitations Section Amendment

BAe 146 and AVRO 146-RJ: Fuselage – Centre Fuselage Forward Rib 0 Longeron – Inspection (and reporting if required)

BAe 146 and AVRO 146-RJ: Fuselage - Left Hand Nose Landing Gear Well Sidewall & Retraction Jack Attachment – Inspection

BAe 146 and AVRO 146-RJ: Fuselage – Rear Fuselage Skin and Frames – Inspection

BAe 146 and AVRO 146-RJ: Landing Gear – Main Landing Gear Sidestay Outer Link (LH & RH) – Inspection and Lubrication

BAe 146: Auto Flight – Autopilot Disconnect – Modification

BAe ATP: Engine Controls – Flight Idle Baulk Actuator and Rollover Lever Pawl – Inspection / Replacement

BAe ATP: Engine Controls – Power Control – Engine Power Control Cables - Replacement

BAe ATP: Indicating / Recording Systems – Flight Data Recording System – Check

BAe ATP: Indicating / Recording Systems – Flight Data Recording System – Check

BAe ATP: Navigation – Radio Altimeter Antenna Installation – Modification

BAe ATP: Oxygen – Crew Oxygen Masks – Overhaul

BAe ATP: Time Limits / Maintenance Checks – Airworthiness Limitations – Amendment / Implementation

BAe ATP: Undercarriage – Main Landing Gear Shock Absorber Bolts – Inspection (Records)/Replacement

Bell Textron Canada Limited (Bell) model 429 helicopters, serial numbers 57001 and subsequent: Tail Rotor Blade Abrasion Strip Cracks

Bell Textron Canada Limited (BTCL) model 505 helicopters, serial numbers 65011 and subsequent: Empennage Structure – Vertical Stabilizer Top End Cap Assembly Cracking

Bell Textron IncHH-1K, TH-1F, TH-1L, UH Series helicopters : Rotors – Inspection and Replacement of Main Rotor Hub Strap Pins

BN2 Islander and Trislander: Landing Gear – Nose and Main Landing Gear – Recording of life / Replacement

BN2 Islander and Trislander: Flight Control – Primary Flight Controls - Inspection

Boeing 737-8 MAX and 737-9 MAX: Return to Service

Boeing 737-8, Boeing 737-8200 and Boeing 737-9 (MAX) Return to Service Requirements

Bristol Aeroplane Company: Engine Exhaust Valves-Removal From Service

Cameron Balloons Fuel Cylinders Part Number CB2990 Issue A (Alugas): Fuel - Fuel Cylinders (for balloons) – Withdrawal from Service

Cameron Balloons Fuel Cylinders: Hot Air Balloons – Fuel – Cylinder Quick Shut-off Valve Mounting Flange – Inspection / Replacement

Carbon Monoxide Contamination Minimisation & Detection in General Aviation Aircraft

CAT.POL.A.230 and CAT.POL.A.235 Landing – Dispatch Requirements

Cavalon Pro gyroplanes: Main Rotor(s) – Rotor Blade – Inspection / Replacement /Life-Limitation Amendment

Commercial, Organisational and Client Pressure in Flight Operations

Components Strips Report

CT2K and CTSW Aircraft : Fuel System - Engine Fuel Feed

Decision not to adopt FAA AD 2020-26-16: Piper PA-28 and PA-32 aeroplanes

Decision not to adopt FAA AD 2023-02-02: Gulfstream Aerospace Corporation Model GV and GV-SP aeroplanes

Dyn'Aero MCR-01, MCR-01 Club and MCR-01 ULC: Aluminium Fittings - Inspection

Edge 360, Edge 540 and Laser Z200: Flight Controls – Aileron Centre Hinge Attachment – Inspection / Replacement

Emergency Parachutes in Ex-Military Jets

Engine Valve Springs - Rolls-Royce and Packard Merlin (All Marks)

Europa Aircraft: Aircraft Doors - Bracket - Modification

EV-97 teamEurostar UK and EV-97 Eurostar SL Microlight: Amendment of Inspection Requirements and Replacement of Critical Structural Items

Ex-military aircraft equipped with Aircraft Assisted Escape Systems: Pyrotechnic Component Life Limitations – Remove from Service

Ex-Military Westland Gazelle Helicopters: Tail Rotor Blades – Life Limit / Re-identification

Exodus DeltaJet 500 StingRay: Aircraft Structure – Trike Frame – Operational Limitation

General Aviation Aircraft Safety Harness Integrity

General Electric Company (GE) Model CT7-2E1,-2F1, -8A, -8E and -8F5 engines: Engine - Torque Reference Tube Magnetic Insert Braze Joint - Inspection

Global Navigation Satellite System Outage Leading to Navigation / Surveillance Degradation

Grounding of all Freefly Astro Aircraft

Harvard All Variants: Wing Spar Corrosion Inspection

Hawker Hurricane and Sea Hurricane: Undercarriage – Undercarriage Fork End Fittings – Inspection / Replacement

Helicopter Operations - Guidance on Aerodrome Operating Minima for IFR Departures

HELICOPTERES GUIMBAL Cabri G2 Helicopters: Rotors Flight Control – Pilot and Co-pilot Cyclic Stick Base – Inspection

Hot Air Balloons / Mixed Balloons: Hot Air Balloons – Burner Assembly and Hanger – Inspection / Modification

HS 748: Time Limits / Maintenance Checks - Environmental Damage Corrosion Prevention and Control Programme - Amendment

HS 748: Undercarriage – Nose Landing Gear Axle – Inspection

Identification of Critical Parts in Operators Maintenance Programmes

Ikarus C42: Fuselage – Main Fuselage Tube – Inspection for Cracking

Ikarus C42: Propeller – Forward Hub – Inspection for Cracking

Ipeco Type 3A063 flight crew seats: Equipment / Furnishings – Pilot & Co-Pilot Seats – Inspection / Modification

Jetstream 3100 and 3200: Flight Controls – Push Rod Assembly at Gust-lock/Power Lever Baulk Mechanism - Replacement

Jetstream 3100 and 3200: Flight Controls – Rudder and Elevator Flight Control Cable Terminals - Inspection

Jetstream 3100 and 3200: Landing Gear - Main Landing Gear/Pintle to Cylinder Interface – Inspection

Jetstream 3100 and 3200: Time Limits / Maintenance Checks – Corrosion Prevention and Control Programme – Amendment / Implementation

Jetstream 3200: Time Limits / Maintenance Checks – Airworthiness Limitations – Amendment / Implementation

Jetstream 4100: Doors – Passenger Door Inner Skin, Edge Member and Seal Carrier adjacent to Roller Brackets – Inspection

Jetstream 4100: Fuel System – Tank Bonding Leads – Tank Bonding Improvement - Fuel Pipe Clearance – Inspection / Adjustment

Jetstream 4100: Time Limits / Maintenance Checks – Airworthiness Limitations – Amendment / Implementation

Kidde Graviner Automatic Fire Extinguishers: Inspection of Frangible Plug on Automatic Fire Extinguisher

Laser Attacks

LEONARDO S.p.A. AB139 and AW139 helicopters: Main Landing Gear – Main Landing Gear Shock Absorber – Inspection

lvchenko AI-14, Vedeneyev M-14 P and Zhuzhou HS-6 engines: Engine Life Limit

Magni M24C gyroplanes: Flight Controls - Rudder Pedal Mounting Block – Replacement

Maintenance Programmes for Aircraft Used for Glider Towing

Martin Baker Ejection Seats: Inspection of Ejection Seat Drogue Shackle Connection: Supersedes 2011-008-E

Merlin Engine, Packard Merlin Engine: Camshaft Bracket, Retaining Studs

MT-03, MTOsport, MTOsport 2017, Calidus and Cavalon gyroplanes: Main Rotor(s) – Rotor Blade – Inspection / Replacement / Life-Limitation Amendment

Nanchang CJ-6A: Tailplane Forward Spar - Inspection

Non-Part 21 Amateur-Built Balloon and Airship Operational Limitations

North American Aviation : Inspection of Flight Control System

North American P51 Mustang (All Marks) Undercarriage Leg Pivot Shafts

Offshore Helicopter Helideck Operations

P&M Aviation Ltd : Pegasus Quik, Quik GT 450, QuikR and Quik GTR : Sail Reinforcement Degradation - Additional Test

P&M Aviation Ltd Pegasus Quik: Wing - Top Rigging Clevis Pin – Split Ring Replacement

P&M Aviation Ltd: Wing – Luff Line Attachment Webbing – Inspection

P&M Aviation Quik GTR, QuikR: Wing – Hang Bolt Installation– Inspection and Modification

PILATUS AIRCRAFT Ltd PC-24 Aeroplanes: Flight Controls – Rudder Trim Tab Installation / Threaded Bolts – Replacement

Piper PA-28 and PA-32: Wings – Lower Main Wing Spar Caps – Inspection

Pipistrel Vertical Solutions d.o.o - Alpha BCAR-S 164: Flight Controls – Flaperon Bellcranck Bolt – Inspection

Potential Interference Risk to Radio Altimeters from 5G Mobile Technology

Pratt and Whitney Canada Corp - PT6A-64, PT6A-66, PT6A-66A, PT6A-66B, PT6A-66D, PT6A-67, PT6A-67A, PT6A-67AF, PT6A-67AG, PT6A-67B, PT6A-67D, PT6A-67F, PT6A-67P, PT6A-67R, PT6A-67RM, PT6A-67T, PT6A-68, PT6A-68D, PT6E-67XP, and PT6E-66XT engines: To prevent the failure of PT2 blade

Protecting Final Reserve Fuel and The Minimum Fuel Declaration

Reality Escapades and Sherwood Scouts: Cockpit Seats – Seat Locking and Secondary Seat Restraint – Inspection

Remotely Piloted Aircraft Systems (RPAS) Geo-Awareness

Requirement for Use of CAA-designated Examiners to Extend LAPL(H) Privileges

Risk of Controlled Flight into Terrain during 3D BARO-VNAV and 2D Approaches (Altimeter Setting Procedures)

ROCC ‘Flight Safety Messages’ Requirement

Rolls Royce Avon Mk 1, Avon Mk 100 series, Avon Mk 200 series: Engine Calendar Life Limits- CORRECTION

Rolls-Royce Avon Mk 1 and 100 Series Engines: Engine Stage 1 - 4 Compressor Blades and Discs - Inspection

Rolls-Royce Avon Mk 20 and 100 series Engines, All serial numbers, All applicable Front Compressor Casing Part Numbers: Front Compressor Casing- Inspection

Rolls-Royce Avon, Viper, Orpheus,Nene, Derwent, DH Goblin, Ghost,Motorlet M701,Ivchenko AI-25: Engine Fuel System- Ageing Effects

Rolls-Royce Derwent Engines: Engine Calendar Life Limits

Rotax 912 and 914 Engines: Reciprocating Engine – Valve Push Rod Assembly – Inspection / Replacement

Rotax 912 and 914 engines: Replacement of Flywheel Hub Washer Part No. 944072

Rotax 912 and 914 Series engines: Crankshaft Inspection

Rotax 912 and 914 Series engines: Engine - Oil pump and attachment bolts -Inspection

Rotax 912 i and 915 i A (Series) engines: Engine fuel and Control - Fuel Pump Assembly - Replacement

Rotax 912 iS and 912 iS Sport engines Ignition: Ignition Housing Sealing Plugs - Inspection

Rotax 912 UL, 912 ULS, 914 UL and 912 iS Sport engines: Engine – Propeller Gearbox Magnetic Plug – Inspection / Propeller Shaft Replacement

Rotax 912UL and 912ULS Series engines: Fuel Pump - Pressure side fuel hose replacement

Rotax 912UL, 912ULS and 914UL series engines: Cylinder Head Inspection/Replacement

Rotax 912UL, 912ULS, 914UL: Engine Cylinder Head – Inspection/Replacement, Engine Re-identification

Rotax 915 iS A and Rotax 914 UL engines, all serial numbers: Exchange of exhaust valves

Rotorsport UK Calidus: Front Fork Top Steering Plate Replacement

Rotorsport UK MT-03, MTOSport and Calidus gyroplanes: Rotor Blade – Life Limit: Supersedes MPD 2010-008 R1

Rotorsport UK MT-03, MTOSport and Calidus gyroplanes: Rotor Head Assembly Main Bearing Bolt – Replacement

Rotorway Executive 162F helicopters: Mandatory Requirements for UK Approval

Rotorway Executive 90 helicopters: Mandatory Requirements for UK Approval

Rotorway Executive and Rotorway Executive (Modified) helicopters: Mandatory Requirements for UK Approval

Rotorway Executive helicopters: Engine Cam Gear Life/Replacement

Rudder Lower Pintle Pivot Pin British Aircraft Corporation 167 Strikemaster and Jet Provost (All Marks)

Sikorsky S-76 and S-92A, Bell 212, 214B, 214ST and 412, and Bell (Canada) 222, 230 and 430: Equipment & Furnishings – Emergency Flotation System – Rotorcraft Flight Manual (Supplement)

SkyRanger, SkyRanger Swift and SkyRanger Nynja: Inspection for Material Type – Control Cable Shackles and Elevator Joiner

State Helicopter Flight Recorder Requirements

Statement: Not Eligible for Adoption - FAA AD 2023-10-02: Appliances - Instruments and Navigation

Statement: Not Eligible for Adoption - TCCA AD CF-2023-46: Appliances - Instruments and Navigation

STC Twenty One Limited VIP Cabin Interior: Doors – Emergency Exit – Functional Check

Survitec Emergency Breathing System (EBS) fitted to Halo Passenger Lifejacket: Equipment / Furnishings – Life Jacket - Inspection

Survitec Group Ltd: Life Raft Heliraft 18R MK3: Equipment / Furnishings – Life Raft - Inspection

Survitec Lifejackets Type 102 Mk 3, 102 Mk 4 and 105 Mk 1: Equipment / Furnishings – Lifejackets – Inspection

Suspected Unapproved Parts – AOG Technics Limited

Thruster T600: Propeller flange to crankshaft attachment screw replacement

Undercarriage Leg Support Bracket Avions Max Holst MH.1521 “Broussard” (All Marks)

Upper Torso Restraint for Crew Seats - Robinson R44 and R22 Helicopters

Use of the Fuel Pump Primer in an Emergency: Yak 50/52 Aeroplanes

Various: Amendment of National Permit to Fly Conditions – Requirement for Aircraft to be Maintained in Accordance with a Maintenance Programme Approved by the UK CAA

Vedenyev M-14P, Ivchenko AI-14, Zhuzhou HS-6: Engine Fuel System- Inspection and Draining

Vickers Supermarine Spitfire and Seafire aeroplanes: Cracking of Main Landing Gear Chassis Pintles - CORRECTION

Vickers Supermarine Spitfire and Seafire aeroplanes: Main Landing Gear Pintle Mount Studs Inspection

Vickers Supermarine Spitfire and Seafire aeroplanes: Main Landing Gear Support Eye bolts

Westland Gazelle AH.Mk 1, HT.Mk 2 and HT.Mk 3 helicopters: Landing Gear – Rear Cross-Tube – Inspection / Replacement

Westland Gazelle AH.Mk 1, HT.Mk 2 and HT.Mk 3 helicopters: Main Rotor – Main Rotor Hub Torsion Bars – Inspection

Westland Scout AH1, Westland Wasp HAS1 and Westland Wasp MK1B: Rotors Flight Control - Main Rotor Gearbox Controls - Inspection and Lubrication of Trunnion Bearings between Overhauls

Yakovlev Yak-50: Airframe Life Limitation

Yeoman Light Aircraft Company Limited : Dynamic WT9-UK : Fuel Cock Lever Inspection / Repair