Aircraft oxygen bottle testing. Our capabilities include hydrostatic testing, fire bottle MRO, and oxygen system service, testing, and oxygen cylinder replacement The oxygen cylinder or bottle is inspected for corrosion or damage and the hydrostatic testing determines the strength and integrity of the cylinder. Mar 5, 2017 · Also included is an oxygen calibration kit. Spectrum Gas offers a full service cylinder maintenance facility. Compliance with these guidelines is crucial for aviation and medical transport industries dealing with oxygen cylinders. 1 CHG 218 to clarify how aircraft operators are to administer the maintenance requirements of high pressure cylinders used on US registered aircraft. We test Ski Ox, Airox, Air-King and all other portable aviation oxygen tanks. Schedule your refill now! Our specialised services include testing various aircraft bottles, including portable fire extinguishers, fire bottles, safety cylinders, oxygen life support bottles, inflation bottles, and air bottles for gear down and engine start-up. View our hydrostatic testing guide. During a 4130 Steel Cylinder per DOT 3HT and TC-3HTM. Anyone recall or know the source of the reg? Thanks, Geoff It includes specifications for cylinder integrity, testing, labeling, and handling to prevent leaks or explosions during transit. The external filler valve includes an orifice which restrains the filling rate, and it is protected by a cap so that contamination is prevented when the charging line is not connected. The workshop is conveniently located between Adelaide’s three significant Airports: 11 km from Adelaide Study with Quizlet and memorize flashcards containing terms like An aircraft oxygen bottle may be considered airworthy if it has been hydrostatically tested and identified, The altitude controller maintains cabin altitude by modulation of the, 1) Usually bleed air from a gas-turbine engine compressor can be safely used for cabin pressurization 2) Independent cabin condition air machines (air Precise Oxygen Equipment, formerly Nelson Oxygen, is the highest regarded aviation oxygen system available to the aviation consumer. Contact HRD Aero Systems Inc. certified cylinder requalifier, and we specialize in hydrostatic testing for portable aviation oxygen tanks. Learn the essentials of an aircraft oxygen system, rules, filling, repairs and more. Get top-quality solutions from Aerospace Turbine Rotables for enhanced safety and peace of mind. Apr 18, 2019 · This condition, if not detected and corrected, could lead to reducing the available oxygen capacity of the aeroplane, possibly resulting in injury to aeroplane occupants following a depressurization event. Our facility uses State of The Art, computer driven test equipment, to ensure our customers cylinders are properly and accurately tested in accordance with DOT and industry standards. com for more information, or visit Omnigas Systems. D497 approved facility covers Oxygen, Air, Nitrogen, Co2 and mixed gas applications for all major OEMS. RPT 0002 08/05/2019 Hydrostatic Testing The Compressed Gas Association (CGA) and the Department of Transportation (DOT) provide guidance on the safe transportation, storage, and use of high pressure oxygen cylinders. Our supported components include; Cylinder, reservoir & valve assemblies Cylinder charging Regulators Bottles Hose testing Nitrogen charging panels Our US D. Oxygen is used to compensate for the reduction of partial oxygen pressure in the lungs when flying above 10 000 ft. These tests are performed to determine the safety and structural integrity of a variety of objects including gas cylinders, storage tanks, plumbing systems and chemical pipelines. Fire System Services offers comprehensive re-testing, recertification, and reconditioning services for all types of aircraft oxygen cylinders. See relevant content for aeroplanetech. for FAA-approved aircraft oxygen servicing. , Aircraft oxygen is: and more. Thank You Thank you for investing in an Aerox® Portable Oxygen System from Aerox Aviation Oxygen Systems. The FAA has issued FSIMS bulletin 8900. The test is successful if the cylinder, when examined under test pressure, does not display a defect described in § 180. With our attention to detail and commitment to excellence, we are proud to offer exceptional testing and servicing of a selection of oxygen cylingers, nitrogen cylinders, halon fire bottles, & halon fire extinguishers. We are committed to rigorous testing and servicing to meet industry standards with your safety being our top priority. Fire System Services operates and manages an approved gas cylinder test station, number 720, specializing in all aspects of Aviation Gas Cylinder Tests and refills. These aluminum cylinders are intended for portable ‘carry-on’ applications, or permanent mounting. If pressure is below 50 psi Oct 13, 2014 · Hi all, I have a steel bottle and was wondering what the frequency of the required Hydro test was. Hydro Testing Cylinders confirms that the expansion of your Oxygen Cylinder is within an acceptable range to continue service. It takes an average of 12-16 business days to certify and hydrostatically test each bottle. With approvals from the Federal Aviation Administration (FAA) and European Aviation Safety Agency (EASA), we also have the unique ability to return cylinder assembles to service in accordance with these regulatory requirements. The cylinder may be proof pressure tested. We perform Hydro Testing on Oxygen Tanks Monday-Friday, usually takes 1-2 days to complete and OXYGEN SYSTEM MODIFICATION - ADJUSTMENT/TEST General This procedure has the following tasks: Middle Pressure Leak Test - Operational Test NOTE: Test and check values for the following tests must be recorded in the tables provided. We are currently able to do various cylinder like Aircraft Oxygen Cylinder – Both stationary and portable, Co2/N2 Cylinders of various escape slides, life raft, floats and slide raft. Ship us your cylinders and we’ll turn them around in 2 days. We hydrostatically test, repair, and overhaul compressed gas systems for fixed and rotary wing aircraft used in commercial, corporate, military, and general aviation. A passenger may carry or operate a portable oxygen concentrator for personal use on board an aircraft and a certificate holder may allow a passenger to carry or operate a portable oxygen concentrator on board an aircraft operated under this part during all phases of flight if the portable oxygen concentrator satisfies all of the requirements in (i) The equipment has been under the certificate holder's approved maintenance program since its purchase new or since the last hydrostatic test of the storage cylinder; and (ii) The pressure in any oxygen cylinder does not exceed the rated cylinder pressure. Fly high, save Avgas! Get that portable O2 system out of the closet and start using it again! Reliable Aircraft Fire Bottles with Hydrostatic testing available at Turbine Rotables. 205. This is to ensure that no unsafe condition exists that would preclude it from performing to its next inspection interval. Aerospace Turbine Rotables, Inc. Cylinders are cleaned for oxygen service. This system, along with the AMI’s Crew Mask & Regulator Test System further expands Automated Motion’s reach in the aviation oxygen testing arena. Different types of oxygen cylinders require different testing frequencies and service life requirements: DOT 3AA cylinders: Test once every five years AVIATION OXYGEN HYDROSTATIC TESTING, MAINTENANCE, REPAIR, AND OVERHAUL Complete Oxygen System Testing and Maintenance Compressed Gas Systems provides full-service testing and FAA/EASA certification of your oxygen cylinder and regulator assembly. A hydrostatic test is HRD Aero Systems, Inc. 405. To verify that your cylinders are not out of their scheduled hydrostatic due dates, look for the test dates stamped or labeled on them. Portable Oxygen Cylinder Assembly(POCA) The 400 series portable oxygen system is our most reliable and convenient high duration oxygen system for the general aviation market. If a cylinder is removed from an aircraft system for testing, it must be retested and re-qualified (Or rejected and condemned) as prescribed in 49 CFR § 180. We can also refill all SCUBA and SCBA cylinders with laboratory tested, clean, dry breathing air and CO2 cylinders with fresh carbon dioxide eliminating the need to make a second stop before getting back to business as usual. AMERON provides FAA/EASA Part 145 repair and overhaul services for aviation safety equipment, including Fire Bottle, Oxygen Bottle, and Oxygen Mask repair. With industry leading turn around times, dedication to quality, great value and customer service, customers turn to Aerospace Turbine Rotables for their fire bottle requalification. Cylinder Testing & Requalification Hydrostatic testing Hydrostatic testing is an essential part of quality control and is the industry standard for most testing. (e) Cylinders in non-corrosive gas service. Dec 10, 2017 · So if you throw an oxygen bottle or fire extinguisher in your aircraft and fly away the FAA defers to the pilot knowing what the test/life requirements are for those cylinders per DOT. Hydrostatic testing required every 5 years for most aviation applications For aviation applications, the + and * are often only present at the initial hydrostatic test. Many pilots need oxygen below the 12,500 feet specified in the FARs, especially at night. Herein the words cylinder and receptacle are used with the same meaning. May 8, 2025 · Discover the critical aspects of aircraft oxygen maintenance, from inspections to innovations, ensuring safety and compliance in high-altitude flights. This can be found in the Original Equipment List, on the tank placard, in the logbooks, or by calling your aircraft OEM with the aircraft serial number. The United States Department of Transportation (DOT) requires that all aircraft oxygen cylinders undergo hydrostatic testing regularly to ensure that they can operate under high-pressure conditions and are free of stress cracks and corrosion. Carrying a portable oxygen system is the only way to protect against the serious and difficult-to-detect symptoms of For Portable Oxygen Maintenance Provide the full part number of the Oxygen Cylinder Assembly (tank plus regulator) currently approved for use in your specific aircraft. Check pressures on all cylinders on the cart and in the aircraft. Regular testing and maintenance of oxygen cylinders is not just good practice; it’s required by regulation. com This is an expired domain at Porkbun. This test stand is used for hydrostatic testing of oxygen cylinders. These vessels hold content under pressure and often under SafeTech USA specialize in countrywide aircraft safety and survival equipment maintenance, repair and overhaul. Hydrostatic Testing Aerox provides DOT Hydrostatic testing services of your portable and on-board aviation Oxygen cylinders through Omnigas Systems. We offer start-to-finish capabilities on the full range of Fire Extinguishers, Oxygen Bottles, Oxygen Masks, Evacuation Slides, Life Rafts, Helicopter Floats, Vests and Air Bottles. If a cylinder is out of date, remove and replace it with a specified unit that is serviceable. The purity results for Type II oxygen and the moisture results for Type I and Type II oxygen shall be reported for correlation purposes and shall not be used to determine compliance to requirements of 3. Hydrostesting, or cylinder requalification, is required by the DOT (Department of Transportation) for all types of cylinders inclusive of SCBA, SCUBA, Fire Extinguishers, paintball cylinders, oxygen cylinders and a variety of cylinder types used for industrial gases. Hydrostatic Testing And Requalification Requirements For Aircraft Pressure Vessels July 2024 Hydrostatic testing is often required at certain intervals for aircraft oxygen cylinders, fire extinguishers and pneumatic bottles. In addition, there is a possibility of ignition/fire in-flight in case of an open hand valve assembly failure, depending on installation zone, or ignition/fire during system ground testing Find many great new & used options and get the best deals for Aircraft Oxygen Cylinder / Bottle - Due for Hydro Test - PN: 800112-13 at the best online prices at eBay! Free shipping for many products! The specified laboratory shall also test for purity and moisture if there is sufficient sample. Feb 17, 2008 · If an aircraft oxygen bottle leaks to zero, what must be done? Just refill it or is there more? Civil Aviation Order (CAO) 20. Hydrostatic test, or cylinder requalification, is required by the DOT (Department of Transportation) for all types of cylinders inclusive of SCBA, SCUBA, Fire Extinguishers, paintball cylinders, oxygen cylinders and a variety of cylinder types used for industrial gases. Known for their durability, precision engineering, and reliability, Scott oxygen cylinders and regulators are designed to keep pilots and passengers safe at high altitudes. Repair Station Certification Click here to view our repair station certification. Hydrostatic testing. Empire Cylinder is a D. Oxygen. We also undertake fire extinguisher HST of cabin and engines (Halons/water/Co2). Upon successful completion of the test and inspection, the cylinder must be marked in accordance with § 180. Aerox® delivers comprehensive aviation oxygen solutions for top aircraft manufacturers, airlines, EMS systems integrators, general aviation, and military users. 213. Check hydrostatic dates on all cylinders, especially those that are to be filled on the aircraft. TYPICAL TURN TIME - 1 to 2 days Hydrostatic Testing Aircraft Pressure Vessels February 2018 What is hydrostatic testing and why must it be done? Hydrostatic testing is a process to determine the strength and integrity of pressurized vessels. Refilling an out-of-date bottle is extremely hazardous. Oct 21, 2022 · In a two-cylinder cascade, one supply cylinder is designated the low-pressure supply and the other is the high-pressure supply. Built-ins - Aviation Oxygen Cylinders, Tanks & Assemblies - Aviation oxygen: Your source for ALL aviation oxygen supplies, overhaul and maintenance - cylinders - masks - regulators - since 1981. Whether Oxygen EquipmentOXY MANUALS AND RESOURCES AVAILABLE WITH MEMBERSHIP (132 documents) Hydrostatic testing is required at certain intervals for aircraft oxygen cylinders, fire extinguishers, and pneumatic bottles. (AeTR), is a global leader in the provisioning of exceptional MRO services for a wide variety of components for the most popular corporate and military aircraft. In addition, type design requirements have also been published for Part 23, 25 and 29 aircraft by both the Federal Aviation Administration (FAA) and European Aviation Safety Authority (EASA). We can hydro your bottle ! Call us for your hydrostatic testing needs. This testing determines whether a cylinder is safe for continued use, and is required by the U. It makes up around 21 percent of the Fire Bottles Aerospace Turbine Rotables for over forty years has been a leader in the inspection and overhaul of Halon fire bottles. The water-filled cylinder is lowered into the barrel on the left where it is pressurized to the proper level as monitored via gauges mounted on the control panel. If this is your domain you can renew it by logging into your account. is an FAA-licensed repair center dedicated to the principle that your safety is paramount. For people who have had this done, how much does it typically cost and how long is average turnaround? Scott Aircraft Oxygen: Trusted Aviation Oxygen Solutions Scott Aircraft Oxygen has been a leader in aviation oxygen systems for decades, providing high-quality, FAA-approved solutions trusted by pilots worldwide. Complete one Shop Solution which includes the supply of Oxygen (O2) & Nitrogen (N2) Service Carts fitted with N2 or O2 Boosters, Regulators, Charging Hoses, Aircraft Adapters & everything required to support or servicing your aircraft. 3HT steel cylinders require testing every three years and have a 24-year service life. Cylinders Testing Steps Study with Quizlet and memorize flashcards containing terms like What test is used to determine the serviceability of an oxygen cylinder?, An oxygen chemical generator is generally the least complicated and requires the least maintenance. At Aerospace Services and Products, we provide thorough aircraft oxygen bottle inspections, maintenance, repairs, and overhauls to ensure that the cabin atmosphere is maintained at optimal levels. These cylinders can be supplied with our low-profile CGA-540 or DIN-477#9 valves with pressure gauge that shows the amount in the cylinder at all times with the valve open or closed. Your Portable Oxygen System is designed, engineered, and manufactured to the highest quality standards in the industry and we are committed to serving your needs with equally high customer service. Jun 12, 2023 · Why should pilots use oxygen? Increase Pilot Safety Hypoxia is a far more common problem than most pilots admit, and is not limited to pilots of turbocharged or high performance aircraft. T. Listed Cylinders are PMA’d for installation in Aircraft listed in PQ2091NE Supplements 2 & 3. Out-of-date bottles cannot be re-filled until they are re-certified per Department of Transportation regulations. This equipment is the first line of defense against the potentially lethal effects of hypoxia and carbon monoxide poisoning. The aircraft maintenance schedule takes precedence over DOT requirements for the testing interval. Oxygen Pressure Reducer Test - Operational Test This document outlines a special permit related to hazardous materials safety and transportation regulations issued by the Pipeline and Hazardous Materials Safety Administration. O. 205 (j) (1) (ii) or (iii). FAA return to service. Sep 6, 2022 · Oxygen systems: Some 3AA bottles have a star stamp, which indicates that the cylinder meets the requirements for a 10-year re-test interval instead of the standard five-year interval. 3. Pressure cylinders used as aircraft equipmnt which remain charged or partially charged on the due date of their hydrostatic test may remain in service beyond the test date providing that the cylinder is retested prior to its next full or partial refilling. Ensure your aircraft's safety with our trusted solutions and services. 2 or 3. See our Full Pack Figure 1. The interval at which these are due and what is to be done is sometimes confusing. The workshop is conveniently located between Adelaide’s three significant Airports: 11 km from Adelaide Airport, 7 km from Parafield Airport, and 15 km OXY-100V This training set is a fully functional typical aircraft oxygen system. Oxygen, fire, and Pneumatic Bottles for Every Aircraft. As an EASA partner, we help Aircraft Maintenance Engineers maintain regulatory standards in Noida. Most of the times this can be performed locally by major gas suppliers that distribute welding and […] Also, the PHMSA (Pipeline and Hazardous Materials Safety Administration) regulates the licensing of companies that perform cylinder inspections on the composite-wrapped oxygen bottles found on 90% of all aircraft. All cylinders are marked on the shoulder of the tank, to designate the type of cylinder, maximum fill pressure, hydrostatic test date Nov 21, 2017 · I need to service my oxygen tank for the first time since purchasing my plane and both the time it has taken and the quote that I've gotten seem excessive. These include, but are not limited to; oxygen cylinders, fire bottles, emergency air bottles, reservoirs, and water bottles. Aircraft Oxygen sales and service. Our specialised services include testing various aircraft bottles, including portable fire extinguishers, fire bottles, safety cylinders, oxygen life support bottles, inflation bottles, and air bottles for gear down and engine start-up. The Aerox 400 series consists of a lightweight aluminum cylinder with ON-OFF valve, an easily attached pressure reducing regulator that allows for quick attachment of flow meters for use with Oxysaver® nasal cannulas for Standard 1, 2, 4, 6, 8 or 12 or customized Bottle Cart or Trolley can be manufactured by HII. The most effective method to purge the cylinder of any suspected moisture is to remove the regulator/valve and with the cylinder turned so the threads are down, blow hot air (heat gun or hair dryer) into the cylinder for about 20 minutes or until all moisture has evaporated. Hydrostatic Testing Intervals for Aviation Cylinders – Oxygen & Pneumatic CGS operates a Department of Transportation (DOT) authorized test facility that complies with 49CFR Part 180. This includes the hydrostatic test requirements on all cylinders. Hydro. To fill, first open the low-pressure supply cylinder and slowly fill your portable cylinder to about 1,200 psi, or until equilibrium, whichever is lower. Oxygen Equipment Use in General Aviation Operations A basic knowledge of oxygen equipment can be critical whether you are flying a commercial, commuter, or a general aviation aircraft. The following is a list of steps to safely fill an aircraft oxygen system from a typical oxygen refill cart. Hydrostatic testing is a critical process for ensuring the structural integrity of aircraft pressure vessels, such as oxygen, fire prevention, and pneumatic cylinders. Focused on ensuring safety, compliance, and service excellence, we specialise in testing and servicing aviation fire extinguishers and oxygen bottles. The hydrostatic test date and inspector mark indicate when the cylinder was last tested and who tested the cylinder. as a result of any aircraft structural or system failure. Testing. The marking are normally stamped into the shoulder of the cylinder. Failure Cause b - Crew / Passenger Oxygen Cylinder/Regulator Assembly (Bottle fails/fractures: loss of oxygen) Level 2 analysis identified 2 tasks as applicable and effective: RST for Hydrostatic test DIS of the bottle @ XX years from date of manufacture Note from the failure effect that it was considered that the failure would not cause a Oxygen cylinders are marked to designate the type of cylinder, maximum fill pressure, hydrostatic test date, inspector, manufacturer, and serial number. CYLINDER HYDROSTATIC TESTING We perform visual inspection as well as government controlled (TC#047) and certified hydrostatic testing of cylinders of all sizes. It is the responsibility of the pilot that all aboard the aircraft, crew-members and For the safety of pilots and passengers on commercial aircraft, oxygen cylinders, or bottles, must be inspected and hydrostatically tested every three to five years depending on the type of bottle. Trust JSS Aviation for expert oxygen cylinder refilling and aviation system checks, with full pressure testing and on-demand services. We provide high quality MRO support for products including escape slides, fire extinguishers, life rafts and life jackets as well as AOG support. AeTR’s capabilities serve many airframe families, including: Beechcraft, Cessna, Challenger, Global Express, Gulfstream, Learjet and Pilatus. 4 details the mandatory operational requirements for oxygen for all aircraft engaged in certain operations in Australia. Sep 26, 2025 · Hydrostatic testing is a critical safety procedure for aviation oxygen cylinders, ensuring that these high-pressure vessels can withstand the stresses of repeated use. Buy aviation oxygen systems and packages here. Precise Flight has developed an exchange program to reduce the downtime for aircraft due to maintenance requirements for oxygen systems. These aluminum oxygen cylinders are featured in our XCP, XCR & EDS portable oxygen systems. Empire Cylinder proudly tests Aviation Oxygen cylinders for the US Military We offer Hydrostatic testing of on board aircraft O2 cylinders. South Florida Hydro Testing Corp is licensed by the Department of Transportation. It got me from the low 80's into the low 90's with a very nice oxysaver cannula for optimizing my on-board oxygen supply. And the NFPA (National Fire Protection Association) maintains certification and testing oversight of portable fire extinguishers. Oxygen Bottle Overhaul Support We specialize in aviation safety equipment with a comprehensice suite of repair and overhaul solutions for all oxygen system manufacturers. See an in cockpit Bonanza O2 Bottle Mounting We would like to show you a description here but the site won’t allow us. Reliable oxygen cylinders for aviation emergencies. Overhaul. Our Cylinder workshop incorporates full Overhaul & hydrostatic test facilities for most common aircraft applications. Hydrostatic Testing of Aviation Components What is Cylinder Requalification? The process of inspecting and testing pressure cylinders Pressure cylinders must be inspected and tested at specific intervals to ensure that no conditions exist that preclude the cylinder from performing to its next inspection interval. C & L Aero offers hydrostatic testing of your oxygen cylinders. We provide service and support to major airlines, aircraft parts distributors, MROs, and operators. Oxygen Tank Hydrostatic Testing is required by law, and for good reason! Oxygen Tanks and Cylinders need Hydro Testing every 5 years to confirm condition of the Cylinder. 6117 or at customerservice@aerox. S. The added benefit cannot be applied if not stamped on the most recent HST markings Aviation Oxygen Bottle Filling System OK, so I retrofitted a factory Oxygen system into my B55 HERE and have found it to be a great improvement in my O2 Saturation at my usual cruise altitudes of 10,000' to 13,000' and at night. Operating rules [1] prescribe when oxygen has to be used and for how long. Aircraft Oxygen Systems Some safety precautions By Joe Escobar September 2001 Oxygen — the life-sustaining gas we need in order to survive. Empire Cylinder can perforn DOT Hydrostic testing of your portable aviation Oxygen cylinders. Aviation oxygen: Your source for ALL aviation oxygen supplies, overhaul and maintenance - cylinders - masks - regulators - since 1981. Our workshop is fully equipped to test and release a wide range of aviation services, including hydraulic tubing, gas cylinders (including high-pressure composite gas cylinders), portable hand-held fire extinguishers, and oxygen cylinders. When Do Oxygen Bottles Have to Be Inspected And Retired? Recently there have been a number of questions directed to the CPA Tech Staff concerning the in-spection of oxygen bottles in aircraft and when or if certain bottles have to be retired from service. The pressure regulator in the system adjusts the pressure in the cylinder to an amount that’s usable by the masks. . Hydrostatic Testing for Inflatable Cylinders Emergency inflatable cylinders, which deploy slides during an emergency evacuation, or rafts and helicopter floats during a water emergency, also require hydrostatic testing. Sep 29, 2020 · Your aircraft maintenance manual is the first reference to use for equipment servicing, testing and requalification requirements, so whatever it says should be the appropriate approach. A displacement container on the top left of the control board collects water from the barrel to measure the expansion of the cylinder when pressurized to Feb 26, 2024 · What can you tell me about cylinder hydro testing? All DOT-approved pressure cylinders require testing at regular intervals. Conditions which are inspected for include life limits, corrosion, damage, and Hydrostatic oxygen cylinder testing can ensure your equipment won’t let you down when you need it most in high altitudes. Department of Transportation for refrigerant cylinders, SCUBA and SCBA tanks, aircraft cylinders, fire extinguishers, beverage (CO2 and CO2/nitrogen mix) cylinders, and virtually all other common compressed gas cylinders—oxygen, argon, helium BOTTLE EXCHANGE PROGRAM Fixed oxygen systems contain a bottle with a 15 year shelf life. Hydrostatic testing obtains two measurements that relate to vessel integrity: Aviation Oxygen Empire Cylinder can perform DOT Hydrostatic testing of your portable aviation Oxygen cylinders. Call us at 239. The con-fusion is understandable because the requirements have changed over the years and information that was printed in Cessna service Fire System Services is a MRO provider of specialised services catering to the Australian land-based & offshore helicopter industry. Local Advantage Empire Cylinder is located in Edgewater, FL, and we serve customers in Daytona Beach and surrounding areas, such as New Smyrna Beach, DeLand, and Titusville. Our service includes hydrostatic testing, visual inspection, internal and external cleaning, oxygen and nitrox preparation, paint and eddy current testing. xb1 9dkox 1qwh 40a1b 8jfd khs1 ta0tt w9eh 6rfj ji6d