Aviation
What Do We Do?
As accredited service providers, the technicians at Fire System Services, also known as National Hydro Cylinder Testing Services, are dedicated to delivering Aviation Oxygen Bottle Hydrostatic Testing, Oxygen Refills, and Overhaul Services across Australia.
We provide thorough re-testing, recertification, and reconditioning services for all types of aircraft oxygen cylinders.
Fire System Services operates and manages an authorized aviation gas cylinder test station, number 720, specializing in every aspect of Aviation Gas Cylinder testing and refills.
With over 35 years of expertise, we are well-equipped to assist you with your Aviation Oxygen Bottle and Overhaul Services.
By choosing to partner with us, you can rest assured that you will receive exceptional service and support from our approachable technicians, who are committed to fulfilling all your Aviation Oxygen Bottle Hydrostatic Testing & Oxygen Refills Service Requirements in Australia.
Information Sheet
CASA CAR30 Certified
Aircraft Compliant
About Us
Fire System Services is a leading provider of specialized services for the Australian aviation charter, for fixed-wing aircraft, and rotary-wing aircraft including offshore helicopter industry.
We specialize in testing and servicing aviation fire extinguishers and oxygen bottles, with a strong focus on safety, compliance, and service excellence.
The workshop is conveniently located between Adelaide’s three significant Airports: 11 km from Adelaide Airport, 7 km from Parafield Airport, and 15 km from RAAF Base Edinburgh.
Our key distinguishing feature is our fast turnaround for all servicing activities. We understand the critical importance of an “AOG” Aircraft On Ground, minimizing downtime for aircraft and strive to efficiently complete inspections, testing, and certification processes.
This commitment is crucial in ensuring that fixed-wing and rotary-wing aircraft can resume operations promptly and adhere to tight schedules.
Furthermore, Fire System Services is approved by the Civil Aviation Safety Authority (CASA) under CAR-30, demonstrating compliance with stringent regulatory standards.
This certification ensures that our services adhere to the highest safety and quality benchmarks, providing confidence to clients in the Australian aviation industry.
Hydrostatic Pressure Testing
Please Note: when sending in an Oxygen Bottle for a Hydrostatic Test, we require you to also send the page from the “CMM” Component Maintenance Manual with the approved data relating to the oxygen bottle service.
The test station can perform DOT Hydrostatic testing of your portable aviation Oxygen, Fire, and Inflation cylinders.
We test all brands’ portable Aviation Gas Cylinders. We offer Hydrostatic testing of onboard aircraft O2 cylinders. Have your mechanic remove and ship us your bottle.
Our hydrostatic test station with precision “Crystal Engineering” Pressure test gauges can apply pressure over 10,000 psi.
We know aluminium, steel, and composite aviation cylinders. We have the proper equipment to inspect, test, and clean oxygen cylinders.
Our test station labels apply to the cylinders and will not damage the composite lining.
We can also perform all basic repairs to damage such as dents, scratches, cuts, rust, corrosion, and re-painting when required.
Aviation Oxygen Bottle Refills
Our workshop provides Aviation Oxygen for all types of Aviation Oxygen Bottle refills.
We can refill a variety of branded fixed and portable “POB” carry-on oxygen bottles.
Additionally, we are available for AOG situations for emergency refills.
Oxygen Regulator – Timex
Please consider the following to speed up turnaround time, especially in “AOG” Aircraft on Ground scenarios, regarding Timex on oxygen bottles.
When you anticipate the scheduled maintenance event, known as the Timex, for the oxygen bottle on the aircraft.
We strongly recommend reading the “CMM” Component Maintenance Manual and determining if the oxygen regulator needs an overhaul.
If so, please contact the “OEM” Original Equipment Manufacturer and obtain a new oxygen regulator.
Then, send in the new oxygen regulator and the oxygen bottle for its five-year hydrostatic test.
Upon completion and release, we will return the expired oxygen regulator and the oxygen bottle fitted with the new regulator.
Regarding the old oxygen regulator, please send it to the “OEM” for an exchange part overhaul, then keep that as your part for the next five-year hydrostatic pressure tests.
Aviation Gas Bottle Testing & Refills Call us today at 1300 883 473 or email us at info@firesys.com.au
Oxygen Bottles
DOT Class Cylinders
Department of Transportation (DOT) requires that all aircraft oxygen cylinders be hydrostatically tested regularly to verify that they can operate under high-pressure circumstances and are free of stress fractures and rust.
Different types of oxygen cylinders require varying testing durations and service life criteria:
- 3AA oxygen cylinders: Test once every five years with indefinite service life.
- 3HT oxygen cylinders: Must test every three years with a 24-year service life.
- Composite oxygen cylinders: Implement testing every five years with a 15-year service life.
To verify that your cylinders are not out of their scheduled hydrostatic due dates, look for the test dates stamped or labeled on the cylinders.
New Aviation Cylinders Imported
New portable oxygen bottles designed for carry-on use, which are not integrated into the aircraft’s fixed systems, must adhere to the AS2030 and AS2337 standards, which constitute the Gas Cylinder Test Scheme.
Prior to being re-gassed, older cylinders should be inspected to confirm that they are within their test date by checking the Gas Cylinder Test Stamp and the associated test dates.
Example of an Australian Gas Cylinder Test Stamp and dates (depicting the bottle as having been tested in February 2026).
02 
26
Neglecting this procedure can pose risks to both the operator and the refiller, exposing them to potential injury and legal consequences in the event of an incident.
It is important to note that gas bottles integrated into the fixed systems of an aircraft are exempt from the regulations specified in AS2030 and AS2337.
Consequently, no Australian test stamp or initial hydrotest is required prior to the first filling according to these standards.
If you have any questions, please do not hesitate to reach out to us today.
Our Services
Our Services Overview for the Australian Aviation Community.
Aviation Services