24 Explorer Reverchon Cracking Failure of slew ring support structure. 25 Tagada Soriani and Moser

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1 NAFLIC BULLETINS This document is not complete and is being updated and revised but the information is provided to assist you with find an appropriate Technical Bulletin. NAFLIC accepts no responsibility for the accuracy of the information Number Device Manufacturer Defect Details Matterhorn Reverchon Detached car Wear in the ball and socket 1. Check balls and sockets. If chrome has worn off replace 2. Provide secondary support system. 3. Cracking is possible in the radial arms. Use NDT 22 Scream Machine Fatigue Failure detected where stub axle fits into radial arm. 23 Juvenile Chair O Plains All Impacts Provide barriers and Paratroopers 24 Explorer Reverchon Cracking Failure of slew ring support structure. 25 Tagada Soriani and Moser Structural failure Wall thickness of booms at risk 17.5mm (later booms 25mm) NDT required in the region of boom stress raisers. 26 Polyp Soriani and Moser Structural fatigue Fatigue cracking at the inner ends of the main radial arms. Fatigue cracking at the upper end of the gusset plates at the centre bobbin. 27 Bungee Jumping HSE consider this is a sport and not suitable for public entertainment. 28 Miami Trip All Many Passengers tending to slip under restraint bar Insufficient padding

2 Occasional opening of restraint bar Lack of padding to seat sides Check locking mechanism of lap bar Padding to protect neck and upper torso Review operating instructions Appropriate height/age restrictions 31 Electric motors All Many Programmable logic controllers see HSG81 Barriers and enclosures must be fitted to open face plate starters Live parts inside enclosures to give at least IP2X (BS5496) Top surface of barriers/enclosures shall be IP4X Suitable precautions to prevent people touching live parts unintentionally DC supplies to be ripple free only from DC generator, battery, 0r a full wave three phase rectifier. 33 Rotors All Problem of trapping riders feet between rotating platform and side walls. Allow ride to low down with the ride in its lowered position. Instruction sheet detailing above to be on display to operator.any rubber on the sides of the drum at lower leg level to be removed. Feet positions to be marked on the floor, several inches form the edge. Fit interlock to the door so that ride cannot start whilst the door is open. 38 Caterpillar Check for Seat friction Separation between seat compartments Unguarded tram wheel Finger traps in the hood mechanism Finger traps between adjacent cars in a trough. 39 Trabant Bennett Restraints Check for flexing of the car sides allowing the restraint to open. 40 Mini Roller Coaster Supercar Tow failure Provide secondary link between cars 41 Tivoli Orbitter Cars strike floor Caused by Failure of any part of the circuit to the three capstns not fitted with limit switches. Failure (such as seizure) to any of the other switches to the other three capstans. Failure of the hydraulic circuit controlling rotation in a way that prevents the ride slowing down e.g. spool valve sticking, sticking solenoid valve, additional feed given wrongly to solenoid valve, Failure of the control system and hydraulic system retracting the capstan shafts, failure of the lift control spool valves or failure of either of the proximity sensors on the lift circuit. 42 Inflatables All Lack of anchors 44 Accident books Inspection bodies to inspect accident books 46 Galleon Zamperla Passenger stability Possibility of passengers sliding of the end of the seat Risk of sliding along the seat to where restraint bar does not hold them Ability to trail a leg outside the hull 49 Flying Coaster Langwheels Damping cylinders become detached from mountings or likely to seize Poor locking of passenger restraints Inadequate guarding of drive/gearbox

3 51 Matterhorn Sobema Failure Risk of clip retaining rear light unit failing replace with captive nuts. 52 Runaway Mine Train Mack Restraint failure Restraint is not fail safe in the event of power 53 Tilt and Whirl Sellner-man Car detachment Cracking of the flange mounts which carry pins about which the car spins. See detailed report. 56 Twist (Scrambler) Eli Bridge Fatigue cracks The centre pole passes through two parallel base plates and is welded circumpherentially to the under side of the bottom plate. Cracks occur in this weld. Cracks occur in the welds between the centre pole and the vertical webs between the two plates. 58 Ramba Zamba, Trebant, Twist Restraint failure Restraints may be operated from inside the cars. Handles should be made inaccessible. 59 Roller Coaster Pinfari ZL Fatigue cracks Rail joints to be subjected to periodic NDT 60 Non structural All Failure and Lighting frames, theaming etc risk of collapse onto ride. components collapse 61 Bungee jumping All Speak to the HSE at Preston before getting involved 62 Chair O Plane All Fatigue failure NDT of centre pole every year. 63 Matterhorn Sobema Link Arm Failure The twenty radial arms are connected by short link arms, two of which are adjustable. The threaded section of the adjusters has failed. Ensure operator has manufacturers tensioning technique advice. Ultrasonic NDT on threaded parts. See detailed report. 66 Quasar ARM Fatigue cracks Cracks have been found on the H frame upper pivots, radiating from the hinge pin holes. The region is inaccessible without stripping down. 71 Ski Jump Pollard Bearing failure Careful examination and maintenance of the arm bushes is vital. 75 Balloon Race Zamperla Fatigue cracks Cracks found in the lifting trunnions which attach the upper end of the hydraulic ram rods to the main centre of the ride. The trunions are welded to the collar and remachined. 83 Miami Trip All Car shaft failure 85 Roller Coaster All Walkways Ensure barriers are adequate to prevent any accidental falls 86 Matterhorn Sobema Car frame failure Risk of car frame failure strip cars. 87 Human Cannonball Concorde Pneumatic problems 88 Supertrooper S E Ward Restraint Bar The restraint bar came open. 89 Roller Coaster All Roll Backs The need for anti rollback device. 90 Turbo Chopper/Sky Dial and deal Pneumatics Dangerous air receivers under the seats. Hawke/Radar and Finland 91 Miami Trip All Padding Padding required to the sides of the seat and to the restraint bar. 92 Looping roller coaster Pinfari Brake failure Failure of the car fin brake. 93 Reverse driving of rides All Design Review A design review is required where this facility is not identified in the manufacturers hand book. 95 Electrical Detection/Interlocks on seat restraints All Restraint checks Check because Detect only the position of the restraint not whether it is locked Detect the position of the restraint but allow too wide a range to safely contain all passengers

4 Do not fail to safety Allow the detection system to be over-ridden. Have no redundant back up Inadequate strength Inadequate inspection/replacement programmes. 96 Formula rides Idees Loisirs Electrical issues Open electrical connection blocks Railings are not fixed in place Bare terminals in electrical cabinets Electrical power input cables not secure. 97 DC Tracked rides All Electrical shock risk DC supply must be ripple free from DC Generator or a full wave three phase rectifier. Neither positive or negative should be connected to earth at any time Fuses should be fitted to each pole of the supply and at all points where they are required to protect supply cables due to changes in cross section. All switches, isolators etc, should be double pole. All exposed isolators, terminals, conductors and fuses should be shrouded. 98 Roundup (Meteorite) Cadaxton Fatigue failure Cracks in the upper ram pins. Strip and subject to NDT. 100 Roller Coasters etc All Fail Safe Braking Systems 101 Top Spin Far Fabri Fatigue Failure See report 105 Galleon Ship Zamperla Passenger containment 106 Passenger containment All Passenger containment 107 Log Flume All Passenger thrown forward In some instances brakes rely on air pressure to hold the brake on. Lack of air results in the brake releasing. Brakes should fail to safe. Three incidents have occurred where children hve placed their feet outside the walls of the galleon and have struck fixed features. Annual inspection to check if it is possible to trail a leg or make contact with a fixed feature. Ensure the loading platform retracts Fit entrance gates in the side of the galleon Provide suitable signs. Containment systems should protect against Falls as result of reasonably foreseeable passenger behaviour Inadvertent opening of restraints Passengers thrown forward during deceleration in the water trough and sustaining injury. Look for footrests, handrails, padding at the front of the log, depth of water etc. 109 Miami trip Emmett Fatigue Failure Need for 6 monthly NDT by MPI of car shafts. 111 Barriers All Falls Barriers should normally be 1m high. If the fall height exceeds 2m they should be 1.1m high. 112 Ferris Wheel All Restraint bar Passenger access to the restraint bar mechanism should be impossible 114 Liberty wheels All Restraint Bar Passenger access to the restraint bar mechanism should be impossible 115 Round up, Paratrooper Hrubetz See report and Fireball 120 Matterhorn Reverchon Wear Failure Cracks in the stainless steel plates in cars due to wear. 121 Matterhorn SDC Wear/Fatigue Failure Failure of joints inside the car.

5 127 Super Loop on Top Soriani and Fatigue Cracking Cracking in the main universal coupling pin, hing pin in the articulated hinge Moser 128 Liberty/Gondola wheels Speak to the HSE 133 Miami Trip Fairmat, Ewofab, Restraint bars Modifications needed to the locking system for the restraint bar Nottingham UK 134 Twist Sonacose Restraint bar Corrosion to the spring. failure 137 Stealth Series Flight Avionics Contact manufacturers Simulators Ltd 138 Miami Trip All Restraint bar Risk of fatigue in the restraint bar Lamb Chops fatigue failure 139 Roller Coaster Wheels All Wheel failure Wheel strength may be substantially reduced by heat treatment when fitting new steel tyres. 140 Miami Trip All Restraint bar Restraint bar pressure should not exceed 0.15 KN or 0.08 KN ifr children are admitted. 142 Ferris Wheel Zamperla Fatigue Failure Car shaft weld failure the circumpherential weld on the back face of the flange plate by which the support shaft assembly is bolted to the main radial arm section. 143 Roller Coaster RC40 Pinfari Brake unit failure The pivot pins in both fixed and moving clippers are prone to excessive wear and cracking. The pin bosses welded to the callipers are prone to cracking. 144 Miami Trip Emmett Restraint bar Bars can open during operation of the ride. 145 Alibaba ARM (UK) Ltd Fatigue Failure Cracks at the centre where arm gussets attach to the centre drum due to excessive start up forces (Kit available from the manufacturer) 146 Blizzard Roller Coaster Cavazzo Diego Falls A passenger fell between a car and the platform Italian Amusement Products Ltd Top Fun 147 Bare conductors 148 Blizzard Roller Coaster Cavazzo Diego Brake Failure Brake failure due to loss of power Italian Amusement Products Ltd Top Fun 149 Aeroplane Roller Coaster Big Country Mountaineering Bolt Failure Changes to cars & passenger occupancy contributed to bolt failure Identify the need to check bolt torques 150 Nautic Jets Car inverted A loss of power applied a brake and a car inverted. 151 Round up/metiorite Cadoxton Risk of falls Application of the E stop at full speed and full tilt, results in a dangerous loss of rotation speed before the boom is fully lowered. 152 Roller Coaster RC50 Pinfari/Python Restraint failure Shoulder Restraint rachet failure due to cracks in threaded section rachet bar. ZL Gondola Wheels All Traps Risk of traps between gondola and fixed features. 154 Looping Coaster Swazkopf Fatigue Failure Wheel Axle Failure

6 155 Ranger Huss Restraint problems Hydraulic restraint bar operation may be suspect. 156 Log Flume Reverchon Aggressive finishes The bolts securing the front padded section protrude 20mm into the log and have caused leg injuries 157 Cyclone Twist Sonacase Restraint failure The restraint release handle/lever developed excessive travel, allowing the pawl to pull out of its guide. 158 Cyclone Twist Bennett Fatigue Failure Capstan Shaft has failed 159 Paratrooper Bennett Fatigue Failure The stub shaft shoulders at the mid Hydraulic Cylinder trunnions develop fatigue cracks 161 Roller Coaster All Brake Failure Anti Roll Back brake failure 167 Passenger Restraints All Passenger restraints Negative mode switching the contacts weld together or the spring brakes, result in the contacts remaining shut and allow the ride to start regardless of restraint bar position Positive mode switching the contacts are normally closed and are held open to signify the restraint may be released. 171 Cyclone Twist Bennett Fatigue Failure Reappraisal of Capstan shaft required. Applies to twists predating May Emergency Evacuation All Emergency Evacuation Emergency Evacuation procedures to be displayed Emergency evacuation to be practiced Demonstrate at Annual test. 174 Cyclone twist Edwin Hall Wear Failure The upper bearing of the Capstan shaft can fail allowing the shaft to fall through the upper arm support 175 Safari Train (Praire Swivel Pin Failure This allowed carriages to veer off and overturn Train) 176 Bungee Rocket Failure Karabiner Failure allowing rider to fall 178 Roaring Rapids Raft Overturned Consider risk of rafts bunching Consider risk imposed by wearing seat belts 179 Persons who might be injured Consider - Public safety Being splashed Crushed Struck by dropped objects 180 Reverse Bungee Bungee trampoline All Change of equipment The equipment was changed and a user fell. The operator has been charged as result of the changes that were made. 181 Go Kart All Rider behaviour A fatality occurred when a driver was killed as result of a rear ending. The 2 nd driver was convicted of manslaughter 182 Hair entanglement All Hair entanglement If necessary address risk through operating procedures. 183 Torques All Bolt failures Important to use correct toques margin for error less than 10% 184 Super Bob Reverchon Restraint failure Changes to safety bars are safety critical and require a design review. 186 Generators Centre tap Generators 110V AC centre tap gives 55 volts per conductor low risk 240V AC centre tap not to be used 187 Matterhorn Sobema Tram Failure Subject but welds in tram to NDT 188 Carousel Fatigue Failure Cracking of centre pole just above support frame.

7 189 Go Gator ARM Fatigue Failure Wheel cluster fell of a car. 190 Tagada Emiliana Luna Fatigue Failure Cracking around the boom at the pivot end near gusset plate Park 191 Looping Coaster Pinfari ZL 42 Fatigue failure Failure of axles near very small but sharp shoulder Shown to be a problem on many axles with sharp shoulders. 192 Ferris Wheel Zamperla Radial Arm Cracking Cracking of the main radial arms at the inner hub end Car axle fatigue cracks have also been noted Failure at mid end nd end arm butt welds have also been found 193 Gondola Wheel Falls Importance of securing doors and door safety chains. These can catch and invert the car, ejecting the passengers. 194 Anti roll back failure 196 Mini Roller Coaster Mimafab Fatigue Failure Main vertical axle pivot pin failure is a risk. Strip annually and subject to MPI. 199 Train Ride Winnards Overspeed A short circuit caused the train to operate at excessive speed and then to derail. Ensure use of glands, grommets etc Provide over current protection to all cables Provide isolyaion to both supply cables Ensure maximum speed cannot be exceeded under any circumstances by changing gearing etc. 201 Themeing All Collapse Checks on scaffold etc. 203 Inflatables All See entertainment sheet 204 Crazy Frog Safeco Restraint failure In the event of a loss of power the restraint fails to danger 206 Yo Yo (Chair O Planes) Fatigue Failure A chain broke and a rider was injured 207 Softwear All Design Reviews Any changes to softwear programmes requires a design review 209 Super Bob Sobema Fatigue Failure Cracks detected in car frame between car frame and car coupling tube 210 Super trooper S Ward Fatigue Failure Car seat frame failure and cracking in banana 213 Twist KT Enterprise Restraint bar failure 214 Skymaster/ranger type Keith Emmett/ARM Fatigue cracks Cracks in the welds attaching the bolt clamping blocks to the tower plates at the tower hinge. 215 Topspin Far Fabri & Restraint failure others 217 Super Bob All Car failure Checks necessary on attachment of car GRP moulding to frame. 218 Superbowl ARM/Thurston Fatigue Cracking See bulletin 219 Smoke machines Entertainment sheet no All All Leg Entrapment Look for sheering traps and consider motion envelope 222 Rainbow Huss Fatigue Failure Fatigue failure in the structure Maschinenfabrik 223 Jizzler Twist PWS Corrosion Reported serious deterioration of the car frame. 224 Cyclone Twist Sonacase Restraint Failure Wear in the pawl which engages with the ratchet bar. This one pawl was shorter than the others. 225 The Rock Electrical No earthing to the rock face 226 All All CE certification There is no such certification for amusement devices

8 227 Mini Wheel Corrosion Deterioration of the car frame hidden under GRP moulding. 228 Roundup Huss Enterprise Control system failure A safety stop was activated as a result of over travel, cut the rotation and the ride slowed very quickly. 229 Ghost Train Modern Products Roll forward A drive chain broke and where normally the electric motor would act as a brake, the car accelerated down hill into a bend and overturned. 230 Miami Trip Keith Emmitt Fatigue Cracks Fatigue cracks in the arm around the end cap welds and up the side welds. Further cracking at the top of the shaft retaining plate 231 Transporter Turbo Ride jwerks Fatigue failure The motion base collapsed under test. 233 Juvenile Drop Ride J4 rides Structural failure The wire rope parted and the bench dropped 236 Spinning Coaster Fatigue Failure Trunion failure at change in section NDT suggested at 800 operating hour intervals 244 Crazy Frog Safeco Restraint The seat restraint cable routing is close to a lighting unit and heat damage has occurred to the cable. Checks are required. 245 Ferris Wheel All Restraints Need to make all restraint bars double Catches must be inaccessible Catches should be double 246 Mentally impaired See report passengers 247 Spinning Roller Coaster Reverchon Structural problems There are dimensional differences in the wheel clusters which if replaced incorrectly can cause problems 248 Chair O Plane accident All Chain testing Proof loading test certificate for chains required. 257 Spin out/move it/ Frisbee Tivoli Enterprises Structural failure Radial arm failure at the inner end. Cracks at this location would be out of site behind the lighting panels 258 Twist PWS Fatigue cracks Capstan cracking 259 Round up All Control System This device failed to stop Ensure emergency stop and evacuation procedures are demonstrated at the in service inspection 260 Choking Incident All Operation Need to ensure no food or drink is taken onto the device 368 Electro-magnetic Compatibility All Recommendations from IET Link to IET Report Recommendations for Hazard Risk Assessemtn 369 Sartori Techno Jump Sartori Fatigue Cracking Details of fatigue cracking found at various locations Defects 370 Surf Rider Accident ARM Drive failure A drive failure appears to have cause instability with the gondola hitting the floor. 371 Log Flume Accident Reverchon Water level Water level problems may have contributed to the ejection of two passengers problems 372 Huss Enterprise Huss Boom cracking Areas of cracking in the lifting boom have been identified 373 Freak Out Accident Not known Serious failure A machine similar in appearance to the KMG machines but not from KMG.

9 374 Fabbri Evolution Accident Fabbri Passenger ejection An under-size passenger has been ejected. There does not appear to be any mechanical failure. 375 Fabbri Booster Drive Fabbri Drive pinion A drive pinion failure caused an arm to swing out of control failure 376 Fabbri Booster Fabbri Cracking Cracking of the swan neck seat frame Cracking 377 Fairmatt Type Miami Fairmatt Cracking Cracks found at the junction of the spur wheel mounting plate and the arm Cracking in 1 Bungee Update HSE Update on TB360 The need to identify Safety Critical components with individual identifying numbers 379 Mega Bounce Accident Frog Type Rides Inversion of car The inversion may have been caused by incorrect assembly

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