9236 EFTA01332754 U.S. Department of Transportation Federal Aviation Administration March 1, 2007 GULFSTREAM AEROSPACE CORP 500 GULFSTREAMaD MSC B-I6 SAVANNAH OA 31408 Dear Sirs: Fight Standards Service Aircsan Registration Branch. AFS•750 P.O. Box 25504 Oklahoma City. Oklahoma 73125-0504 (4