This near miss occurred at the at an airport's hydrogen refilling station. Around 4:30 a.m., the hydrogen detector of the station was triggered and a sound and light alarm were activated. The hydrogen filling station was up in safe mode and the hydrogen storage system isolated. The connection pipes were purged via the vent and the power supply cut off. An on-call technician from the company in charge of managing the station arrived at 6:15 a.m., confirmed that the installation has been made safe and stopped the alarm. The leak was located on the compressors filter.

This near miss occurred at an airport's hydrogen refilling station. At 7:35, a hydrogen leak was detected by hearing whistles in the near of a pipe. The operators warned the airport firefighters ten minutes later. Upon their arrival, the firefighters set up a security perimeter of 150 m around the installation. The station is located on the border between the public space and the private space and was surrounded by a fence with a gate accessible only by a code unknown to the emergency services.

This near miss occurred at a depot site with 20 fuel cell buses are operated by a local bus company. A hissing sound was heard coming from a hydrogen tank at the refuelling facility, and the local fire department was alerted.After roughly two hours, the fire brigade managed to close the main hydrogen supply, temporarily solving the problem, and local buses were able to resume their service, but were not able refill their H2 cylinders.

This entry refer to a series of events occurred before the date given, which corresponds to the publication of the evidences at the Int. Conference on Hydrogen Safety 2015. The nozzle/receptacle connection froze when refuelling the on-board hydrogen storage system at the lowest precooling temperature of -40 C. However, freezing did not cause apparatus damage nor hydrogen leakage. The nozzle/receptacle is thus able to fuel safely even if the nozzle/receptacle is stuck due to ice.

The station was storing 6,000 litres of liquid hydrogen in ten tanks. Rescue services were alerted and the station's activity is interrupted. The leak was stopped by closing the valves. According to the H2Tools report (see references), a vehicle fill had depleted the high-pressure hydrogen inventory. Consequently, the compressor turned on to refill the storage by compressing 4 bar (60 psig) hydrogen from a liquid hydrogen tank up to the 380 bar (5500 psig) compressed storage tank. After running about 2 hours, a crankshaft bearing started to fail.

A major leak (estimated between 1.5 and 3 kg) of hydrogen from high-pressure storage, resulted in a detonation, from hydrogen a refuelling station.Causes were two untightened bolts securing the gasket between the high-pressure tank and the pipeline.

Minor leak in the break-away coupling for 35MPa dispenser of a refuelling station for buses.The leak developed in the break-away coupling during a controlled test refuel. The test was attended by the station operators staff. The leak occurred as the temperature was decreasing (the hydrogen is pre-chilled to between -33oC and -40oC prior to entering the dispenser).The dispenser was taken out of service until a replacement break-away coupling was installed by the manufacturer.

The HRS canopy was lower than the forecourt canopy. heavy duty vehicles were not noticing the issue and hitting the HRS canopy assuming same height.The canopy has now been repaired twice, and the HRS operator will take care to raise its height to avoid the repeating of the collision. No injury or harm to people was caused.

At a refuelling station for buses, the first dispenser had been taken out of operation, becasue leaking (see HIAD event 403). Another dispenser was being used. Fuelling was taking too long and was very slow. The producer was called and it was found that the solenoid valves were not opening correctly due to a lack of compressed air.

One of the two dispensers at a refuelling station for buses shutdown at a refuelling station. The dispenser company were called and confirmed there was an issue with the dispenser. The station operator switched to the second dispenser. Fuelling was not interrupted.