Operasional pesawat tempur F-16 menghasilkan tingkat kebisingan tinggi yang berpotensi menimbulkan risiko gangguan pendengaran akibat kerja (Noise Induced Hearing Loss/NIHL) pada personel ground crew. Selain karakteristik sumber bunyi, geometri shelter diduga memengaruhi pola distribusi kebisingan melalui mekanisme refleksi dan penyebaran energi bunyi. Penelitian ini bertujuan mengevaluasi pengaruh perbedaan geometri shelter terhadap tingkat dan distribusi kebisingan aktual pada operasi pesawat F-16 di Lanud Iswahjudi sebagai dasar pengendalian risiko Keselamatan dan Kesehatan Kerja (K3). Penelitian menggunakan desain observasional deskriptif komparatif melalui pengukuran tingkat kebisingan pada Shelter Skadron Udara 3 dan Shelter Skadron Udara 14. Parameter yang dianalisis meliputi Equivalent Continuous Noise Level (LAeq) dan Maximum Noise Level (Lmax) pada fase start engine, taxi out, take off, taxi in, dan shutdown engine. Pengukuran dilakukan menggunakan Sound Level Meter yang telah terkalibrasi, kemudian dianalisis secara deskriptif dan divisualisasikan menggunakan contour mapping dengan perangkat lunak Surfer. Hasil penelitian menunjukkan bahwa tingkat kebisingan pada kedua shelter berada pada rentang LAeq 104–118 dBA dan Lmax 115–125 dBA. Nilai LAeq tertinggi ditemukan pada fase shutdown engine di Shelter Skadron Udara 3 sebesar 116,198 dBA, sedangkan nilai Lmax tertinggi ditemukan pada fase start engine sebesar 125,4 dBA. Shelter Skadron Udara 3 menunjukkan distribusi kebisingan yang lebih terkonsentrasi, sedangkan Shelter Skadron Udara 14 memperlihatkan distribusi yang lebih merata. Sebagian besar fase operasional melampaui Nilai Ambang Batas (NAB) berdasarkan Permenaker Nomor 5 Tahun 2018. Penelitian ini menyimpulkan bahwa perbedaan geometri shelter memengaruhi pola distribusi kebisingan dan tingkat paparan yang diterima personel ground crew. Pengendalian kebisingan perlu diprioritaskan melalui pendekatan rekayasa teknis, pengendalian administratif, serta penggunaan alat pelindung pendengaran yang sesuai

F-16 fighter aircraft operations generate high noise levels that may increase the risk of Noise-Induced Hearing Loss (NIHL) among ground crew personnel. In addition to the characteristics of the noise source, shelter geometry is presumed to influence noise distribution patterns through sound reflection and energy propagation mechanisms. This studi focused to evaluate the influence of shelter geometry differences on actual noise levels and distribution during F-16 operations at Iswahjudi Air Force Base as a basis for Occupational Health and Safety (OHS) risk control. A descriptive comparative observational design was employed. Noise measurements were conducted at the shelters of the 3rd Air Squadron and the 14th Air Squadron. The parameters analyzed were Equivalent Continuous Noise Level (LAeq) and Maximum Noise Level (Lmax) during the start engine, taxi out, take off, taxi in, and shutdown engine phases. Measurements were obtained using calibrated Sound Level Meters and analyzed descriptively. Noise distribution was visualized through contour mapping using Surfer software. The results showed that noise levels in both shelters ranged from 104–118 dBA for LAeq and 115–125 dBA for Lmax. The highest LAeq value was observed during the shutdown engine phase at the 3rd Air Squadron shelter (116.198 dBA), while the highest Lmax value occurred during the start engine phase (125.4 dBA). The 3rd Air Squadron shelter exhibited a more concentrated noise distribution pattern, whereas the 14th Air Squadron shelter demonstrated a more dispersed distribution. Most operational phases exceeded the occupational exposure limits specified in the Indonesian Ministry of Manpower Regulation No. 5 of 2018. This study concludes that shelter geometry influences noise distribution patterns and the level of exposure received by ground crew personnel. Noise control measures should prioritize engineering controls, supported by administrative controls and appropriate hearing protection devices.