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Date: 23 Dec 96 22:48:02 From: ajhing@aol.com (AJHING) Organization: AOL http://www.aol.com References: 1
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The ATR (42 and 72) both have an auxiliary hydraulic pump located in the area of the landing gear pod. This is most likely the cause of the "drill" sound you hear at different times on that aircraft. Airbus and ATR share alot of design, so...