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In article , O-ring Seals
wrote: On 27 Jun 2003 16:58:30 -0700, wrote: If they have a fleet flying they have to support it, keep spares in stock, track failures, issue AD's. That costs money. FYI, the manufacturer does not issue AD's. This is done by the FAA. O-ring But the manufacturer has to do the engineering investigation to figure out what the AD should say. Then they present the proposed wording to the FAA to get it blessed, and the FAA releases the AD. The FAA does not have either the detailed knowledge of the design required, or the engineering resources to do the investigation. That can take quite a few man hours of work, as the problem and the fix are seldom simple. And the number of hours required doesn't change much as the size of the fleet changes, so a small fleet size means quite a few dollars of cost per aircraft. -- Kevin Horton - RV-8 Ottawa, Canada http://go.phpwebhosting.com/~khorton/rv8/ |
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