As the country’s leading provider of commercial epoxy floor coatings and floor covering systems, we understand that airplane hangars have a unique set of requirements to ensure a safe and efficient environment. The determining factor in this decision is that other work is also performed in the area and painting is incidental to the specific area that is being treated (wing, rudder, etc. Spray areas appear to be covered under 29 CFR 1910.107, which does not specify a minimum design airflow rate. Should you have further questions, please contact [the Office of General Industry Enforcement at (202) 693-1850]. No visible rust on the exterior of the hangar. The primary purpose of an aircraft hangar is aircraft storage. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov. (Environment and Safety) OSHA requirements are set by statute, standards and regulations. We consider the painting area a spray area rather than a spray room or booth. We consider the painting area a spray area rather than a spray room or booth. Sincerely, Note that our enforcement guidance may be affected by changes to OSHA rules. Deputy Assistant Secretary of the Navy Our contacts are Kappy Paulson and Trinh Do (805)982-4984. The hangar designers will perform the necessary calculations to ensure the airflow rate will keep the hangar atmosphere below 25% of the lower explosive limit. The Aircraft Hangar Development Guide is designed to help you and your airport owner Aircraft hanger safety involves a wide range of issues depending on the work that is being accomplished on the aircraft parked in the hanger. Hangar floor markings are more about a hangar’s function, aircraft type, protection, and most importantly, worker safety. Bright, Clean, Attractive Hangar Floors EPF’s coating system provide a high-gloss, light-reflecting, easy to clean surface. Our aircraft paint booths and retro-fit hanger systems will give you complete control over debris, dust, temperature, and humidity while providing a safe environment for your paint operators. Combine with the hangar is responsible if the hangar safety is the checklist. aircraft paint booth filtration Aerospace National Emission Standards for Hazardous Air Pollutants (NESHAP) requires the use of high efficiency filters to remove 95 percent of particles over 2 micron in size under certain conditions. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. Spray painting performed in the hangars will be primarily spot maintenance, but large areas of the aircraft could occasionally be painted. Is it: Air envelope around the plane, which excludes the "empty" area where there will be no aircraft parts? What airflow rate criteria is required for each of the five levels? 1.1.2 This standard applies only to buildings or structures used for aircraft storage, maintenance, or related activities. The basic function of an aircraft maintenance hangar is to provide flexible space that accommodates change in base loading and to provide optimum use of the flight line for aircraft access. This article is based on a question from an electrical contractor friend who is doing an electrical installation in an extremely large hangar being used for painting aircraft. Hangars support aircraft maintenance, repair, and inspection activities that are most efficiently done under complete cover. See Enclosures (1) and (2). Sprinklers and high expansion foam • Group II w/fueled aircraft – 4 Options: – Above and 4th option of closed head foam It is assumed a package deal, and for good reason: what would justify the expense of an aircraft without assuring its most fundamental protection from the elements? This design allows large aircraft to be moved and parked in the building. (Environment & Safety), Occupational Safety & Health Administration. the safety of the aircraft and related personnel must be ensured. Could you direct us to thier point of contact? “For example, a GIV at Teterboro might pay about $17,000 per month for hangar space, but at Farmingdale that same aircraft might only pay $7,000 to $8,000 a month,” he said. Both the NFPA 33 and the ANSI Z9.3 consensus standards require a sufficient ventilation rate to prevent vapor build-up by requiring airflow to keep the vapor less than 25% of the LEL. ArmorPoxy offers a variety of options to meet your airplane hangar flooring needs. Non-compliance with table G-10 in 29 CFR 1910.94 will be considered de minimis by OSHA as long as the above requirements are met. Without warning, the airplane hangar fire suppression system is activatedand discharges its high-expansion fire-retardant foam onto the aircraft below. This means that the airflow may be variable depending on the job being performed. Issues that may come into play are hazardous fluids, fire safety, slippery surfaces or falling objects. These documents cover all types of aircraft hangars categorized by their use — such as storage and light maintenance, heavy maintenance, manufacturing, fuel cell, wash bays, corrosion control and paint hangars. This letter constitutes OSHA's interpretation of the requirements discussed. 412.6.2 Construction The aircraft paint hangar shall be of … • Hangars housing unfueled aircraft – Sprinklers only – Designed for 0.17 gpm/ ft 2over 5000 ft Fire Protection • Group I w/fueled aircraft – 3 Options: 1. John E. Plummer, Director Paint spray criteria in the ACHIH Industrial Ventilation Manual permits airflow in large spaces as low as 50 cubic feet per minute per square foot of cross-sectional area. Our paint hangars offer capacity to accommodate government, military (all branches) and commercial aircraft specifications. Spray painting in aircraft hangars | Occupational Safety and Health Administration. Airflow calculations based on LEL are typically 10-25% of rates required for health protection. Surrounding working airfields and runways experience a large volume of aircraft traffic with large, low-to-the-ground engines with air intakes powerful enough to suck concrete and other aggregate from the ground and int… 2. In Industrial Ventilation, A Manual of Recommended Practice, 22nd edition the American Conference of Governmental Industrial Hygienists (ACGIH) allows the designer to use a design flow rate of 75 cfm/ft(2) for very large, deep booths, see VS-75-01. The employees must also be fully trained in the hazards to which they are exposed and in the emergency action and fire protection plans required by 29 CFR 1910.38 [and 1910.39], in personal protective equipment as required in 29 CFR 1910 Subpart I and also in the health requirements listed in 29 CFR 1910 Subpart Z. Reducing the flow rate from 100 cubic feet per minute per square foot cross-sectional area will provide a significant reduction in equipment first costs and annual operating costs. Also, from time to time we update our guidance in response to new information. Rolling loads due to aircraft and traffic, require a durable, abrasion resistant surface. Scratch that. Should you require further assistance in this or any other matter, feel free to contact John Plummer or Ron Cain of my staff at 202-693-2122. Office of Federal Agency Programs We appreciate your offer to revisit the OSHA standard interpretation you provided to the Department of the Navy, Office of the Assistant Secretary, (Installations and Environment) regarding spray painting in aircraft hangars. Occupational Safety & Health Administration, Occupational Safety and Health Administration, Severe Storm and Flood Recovery Assistance, Industrial Ventilation Flow Rates in Aircraft Hangars. They are generally quite large and are built so that most of the floor area is unobstructed by structural support members. Dear Ms. Munsell: Sprinklers and low expansion foam 3. Note that our enforcement guidance may be affected by changes to OSHA rules. The airflow rate required for a spray painting area. Regardless of the flow rate, not all the paint overspray will reach the filters and we acknowledge some will drop to the floor.
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