00708nam a2200241 u 4500001001300000003000500013005001700018008004100035040001800076074001400094086003000108099003000138245002500168260003100193300000700224500004700231500001500278500004400293650003900337710005300376949001800429999001900447hsl001007359DGPO20170826152559.0170118s1978    dcu     r    f000 0 eng d  aGPOcGPOdMvI  a0431-A-270 aTD 4.8/5:150/5200-23/CH.2  aTD 4.8/5:150/5200-23/CH.200aAirport ice control.  a[Washington, D.C.,c1978].  av.  aChange 2 to advisory circular 150/5200-23.  aJuly 1978.  aCRDP Program Historic Shelflist record. 0aAirportsxCold weather conditions.1 aUnited States.bFederal Aviation Administration.  aBEVbFed Docs  c264722d264722