MMWR Morb Mortal Wkly Rep. 1994 Jul 8;43(26):472-5.
Helicopters are used by logging companies in the Alaska panhandle to harvest timber in areas that otherwise are inaccessible and/or unfeasible for conventional logging (because of rugged terrain, steep mountain slopes, environmental restrictions, or high cost). The National Transportation Safety Board (NTSB) investigated six helicopter crashes related to transport of logs by cable (i.e., long-line logging*) that occurred in southeastern Alaska during January 1992-June 1993 and resulted in nine fatalities and 10 nonfatal injuries. This report presents case investigations of these incidents.
阿拉斯加狭长地带的伐木公司使用直升机在常规伐木无法到达和/或不可行的地区（由于地形崎岖、山坡陡峭、环境限制或成本高昂）采伐木材。美国国家运输安全委员会（NTSB）对1992年1月至1993年6月期间发生在阿拉斯加东南部的6起与通过电缆运输原木（即绳索伐木*）相关的直升机坠毁事故进行了调查，这些事故导致9人死亡，10人受非致命伤。本报告介绍了这些事件的案例调查情况。
