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• • • <br /> North Field Arrivals on 6/8/05 between 1. p.m. -9 p.m. <br /> • On June 8, 2005 the Runway 29 Instrument Landing System (ILS) that assists <br /> landing aircraft was out of service from 1:15 p.m. -2:15 p.m. and 6:56 p.m. -8:50 <br /> p.m. During these times airlines used Runways 27L and 27R, the alternate air <br /> carrier runways, to land. Five air carriers landed during the first ILS outage and <br /> 24 during the second outage. Typical general aviation arrivals occurred at North <br /> Field during the other periods. <br /> 6/8/05 1 -9 p.m. average noise levels per aircraft type <br /> Average Average Average Duration <br /> Lmax (dB) SEL (dB) (seconds) <br /> Air <br /> Carrier 76 85 22 <br /> Biz Jet 74 81 17 <br /> Propeller 73 80 13 <br /> 6/8 1 -3 p.m., 7 -9 p.m. average <br /> noise levels <br /> Average <br /> Average Average Duration <br /> RMT Lmax (dB) SEL (dB) (seconds) <br /> 9 81 88 19 <br /> 10 70 78 13 <br /> 11 76 85 26 <br /> 6/6 -6/10 (6/8 excluded) 1 -3 p.m., 7 -9 p.m. <br /> average noise levels • <br /> Average <br /> Lmax Average Average Duration <br /> RMT (dB) SEL (dB) (seconds) <br /> 9 74 81 16 <br /> 10 69 77 13 <br /> 11 71 . 79 18 <br />