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@U.S. eportmentof TronsoortotionFederol AviotionAdminisfrdfionFEB 820tf

Mr. Erik Larson

Dear Mr. Larson:Re: Freedomof Information Act (FOIA) request20ll-2602This respondso your January13,2011, FOIA requestseekingall recordson"Twin Star" andooPolarStar" exercises eforeSeptember 1,2001 In addition,yousought any and all recordsduring the time period from January 1,1995, throughSeptember ,2001, in which the FederalAviation Administrationnotified themilitary about the following aircraft situations: deviating from flight plan,flying without flight plan, reporting emergencies, ot responding o FAAcommunication, squawking he hijack code, ranspondernot operating,or air threats.A recordssearchwas conducted n the Air Traffic Organizationoffice ofSystemOperations Services. We were not able to locateany recordsor files pertainingtoyour specific request. The National Archives and RecordsAdministration might be offuither support n your requestseeking ecordsassociatedwith aircraft incidents fromJanuary ,1995, throughSeptember 1, 2001. The address or the National ArchivesandRecordsAdministrationFOIA office is:

The National Archives and RecordsAdministrationSpecialAccessandFOIA (NWCTF)8601Adelphi Road,Room6350CollegePark,MD 20740-6001Attn: FOIAAlso, you may want to contact he U.S. Air Force on "Twin Star" and "Polar Star"exercisessince t was the principal govemmentalagency or those military exercises.

SystemOperationservices800 ndependencevenue WWashington,C 20591

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Theaddressor theU.S.Air ForceFOIA office s:U. S.Air ForceHAF/rMrOFOrA)1000 ir Force entagonWashington,C 20330-1000

If you owe fees or the processingof this request,an invoice containing the amount dueand payment nstructions will be enclosed.The undersigned s responsible or the determination hat SystemOperationsServiceshasno records esponsive o your request.Shouldyou consider his no recordsresponsea denial of your request,you may request econsiderationof this determinationby writing to the Assistant Administrator for Regions andCenter Operations,FederalAviation Administration,800 Independence venueSW.,WashingtonD.C. 20591. Your requestmust be made n writing within 30 days fromthe dateof receipt of this letter and must include all information and arguments eliedupon. Your letter must also state hat it is an appeal rom the above-described enialof arequestmade under the FOIA. The envelopecontainingthe appealshould be marked"FOIA."Sincerely,

t, / ' -= . / / / / ' / ) A '/Lfnw$Kal44t /t'0"'/ r - INancy B. KalinowskiVice President,SystemOperationsServicesAir Traffic Organization