10-19-10 Orbital Deb

LETTER submitted by LightSquared Subsidiary LLC

Letter

2010-10-19

This document pretains to SES-MFS-20101015-01297 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2010101501297_845938

Pillsbury Winthrop Shaw Pittman LLP
2300 N Street, NW | Washington, DC 20037-1122 | tel 202.663.8000 | fax 202.663.8007




                                                                                                Tony Lin
                                                                                            202.663.8452
                                                                               tony.lin@pillsburylaw.com

October 19, 2010



By Electronic Filing (IBFS)

Marlene H. Dortch
Federal Communications Commission
445 12th Street, S.W.
Washington, D.C. 20554

                 Re:     LightSquared Subsidiary LLC
                         File Nos. SAT-MOD-20100405-00064; SAT-AMD-20100908-
                                   00191; SES-MFS-20101015-01297

Dear Ms. Dortch:

        LightSquared Subsidiary LLC hereby files this letter providing additional
information regarding its requests for waiver of the requirement to relieve pressure
vessels at satellite end-of-life, as applied to SkyTerra 1 and SkyTerra 2. Both
spacecraft have a Helium tank system comprised of two tanks, each having a volume
of 68.80 liters. Please direct any questions concerning this letter to the undersigned.

                                                                Very truly yours,

                                                                         /s/

                                                                Bruce D. Jacobs
                                                                Tony Lin
                                                                Counsel for LightSquared
                                                                Subsidiary LLC

cc:      (by email)
          Stephen Duall
          Bill Bell



www.pillsburylaw.com



Document Created: 2010-10-19 09:59:22
Document Modified: 2010-10-19 09:59:22

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