{"id":17891,"date":"2026-11-10T16:05:20","date_gmt":"2026-11-10T03:05:20","guid":{"rendered":"https:\/\/www.hushtecsolutions.com\/eu\/blog\/\/"},"modified":"2026-11-10T16:05:20","modified_gmt":"2026-11-10T03:05:20","slug":"aerospace-noise-control-solutions-across-europe","status":"publish","type":"post","link":"https:\/\/www.hushtecsolutions.com\/eu\/blog\/aerospace-noise-control-solutions-across-europe\/","title":{"rendered":"Aerospace Noise Control Solutions for EU Airports: Three Rulebooks Every MRO Should Know"},"content":{"rendered":"

An MRO hangar at a major European airport answers to three sets of noise rules at once. One protects ramp technicians. One maps the noise that reaches surrounding towns. One governs when authorities can restrict operations. Ground runs, APU tests, and ground power units touch all three.<\/span><\/p>\n

This guide explains how each EU rulebook lands on maintenance operations, and how to plan<\/span> noise control for aircraft maintenance facilities<\/span><\/a> that satisfies all three without building a permanent test cell.<\/span><\/p>\n

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\"Hushtec<\/p>\n

Rulebook 1: worker exposure under Directive 2003\/10\/EC<\/b><\/h2>\n

The Physical Agents (Noise) Directive sets the same thresholds in every member state, though each country writes them into its own law.<\/span><\/p>\n\n\n\n\n\n\n
Threshold<\/span><\/td>\nDaily exposure (LEX, 8 h)<\/span><\/td>\nPeak sound pressure<\/span><\/td>\n<\/tr>\n
Lower exposure action value<\/span><\/td>\n80 dB(A)<\/span><\/td>\n112 Pa (135 dB(C))<\/span><\/td>\n<\/tr>\n
Upper exposure action value<\/span><\/td>\n85 dB(A)<\/span><\/td>\n140 Pa (137 dB(C))<\/span><\/td>\n<\/tr>\n
Exposure limit value<\/span><\/td>\n87 dB(A)<\/span><\/td>\n200 Pa (140 dB(C))<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

A full-power engine ground run produces roughly 130 to 140 dB at the operator position, and hangar work reaches 90 to 105 dB. Technicians pass the upper action value within minutes. The Directive requires you to reduce noise at the source and through technical measures first, with hearing protection as a backstop. Examples of these technical measures include aircraft acoustic barriers, equipment shrouds, and absorption panels.<\/span><\/p>\n

Rulebook 2: The Environmental Noise Directive<\/b><\/h2>\n

Under <\/span>Directive 2002\/49\/EC<\/b>, EU countries must prepare strategic noise maps and action plans for major airports. These assess aircraft noise and the wider noise impact on surrounding communities. The plans can identify areas where noise needs to be reduced, although the measures chosen depend on the airport and national requirements.\u00a0<\/span><\/p>\n

Rulebook 3: The Balanced Approach Regulation<\/b><\/h2>\n

Regulation (EU) No 598\/2014<\/b> applies when airports handling more than 50,000 civil aircraft movements a year are considering noise-related operating restrictions. Before introducing restrictions, authorities must assess measures such as quieter aircraft, land-use planning and changes to operating procedures, taking their likely effectiveness and cost into account.<\/span><\/p>\n

The Regulation focuses on aircraft noise and airport operating restrictions, rather than noise from maintenance equipment. However, ground activities can also affect nearby communities. Acoustic barriers and equipment enclosures may help reduce noise from maintenance work, depending on the equipment, site layout and noise-control requirements.<\/span><\/p>\n

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Where ground noise comes from on an EU maintenance base<\/b><\/h2>\n

\"Private<\/p>\n\n\n\n\n\n\n\n
Zone<\/span><\/td>\nMain sources<\/span><\/td>\nTypical operator-position level<\/span><\/td>\n<\/tr>\n
Run-up areas<\/span><\/td>\nFull-power engine runs, intake and exhaust<\/span><\/td>\n~130\u2013140 dB<\/span><\/td>\n<\/tr>\n
Taxiway and apron<\/span><\/td>\nTaxiing, ground power units, tugs<\/span><\/td>\n~100\u2013110 dB<\/span><\/td>\n<\/tr>\n
Hangar interior<\/span><\/td>\nAPU testing, riveting, reverberation<\/span><\/td>\n~90\u2013105 dB<\/span><\/td>\n<\/tr>\n
Ground support equipment<\/span><\/td>\nGPUs, air conditioning carts, air start units<\/span><\/td>\nVaries; confirm on site<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Treat these as representative. Aircraft type, engine and ground conditions shift them, so measure your own site.<\/span><\/p>\n

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Matching aerospace acoustic noise control to each source<\/b><\/h2>\n

Effective aerospace ground operations noise control assigns one tool to each source.<\/span><\/p>\n